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get the hand laid glass vs chopper gun. At Bluestar we use hand lamination for our fiberglass. Chopper Gun or Hand Laid This is probably the most misunderstood procedure in the fiberglass process. Marine Battery Chargers, Shop All rights reserved. Thanks The pics he sent me show a little wear and tear, but nothing bad. Chopper guns are typically used for other than hull parts where strength is not the main consideration. Hand laid cars take an extremely long time because of multiple layers of cloth, and mat and core mat can be used. The old chopper-gun laminates were built up quickly using a resin gun that simultaneously sprayed catalyzed resin while chopping up glass filaments and feeding them into the gun’s resin stream on the run. When performed by a trained and experienced crew, today’s hand lay-up can be exceptionally well organized and orderly. Although the labor in vacuum infusion might be less, the materials and consumable items associated with the process are relatively quite expensive. It was fast. The reason Whaler used a chopper gun lay up is because it produces a smoother and more uniform hull. Chopper guns generally produce heavier and thicker hulls than hand layup, but sometimes that does not matter. Pumps, Livewell Aerator Pumps Wells, Toilet & Waste Chris-Craft actually tried fireing a gun at an early hull and found it held up and thought well this seems good enough Also no one knew at the time how long fiberglass hulls would last. Similar to hand lay-up, spray-up offers greater shape complexity and faster production. October 15, 2019, 11:47pm #3. And uniformity and predictability are key elements in being able to more accurately engineer the structures built up of those laminates. Hardware, Boat High stress areas are reinforced with hand-laid multi-axial fiberglass cloth along with areas of sharp radii to make sure no air pockets form, strengthen the gelcoat finish and ensure a strong bond between the gelcoat and fiberglass dramatically increasing the durability of the part. Tackle Boxes, Fishing Bait & The Chopper Gun makes it easy to quickly cover large surfaces with fiberglass. Mold release is first applied to the mold to prevent the fiberglass part from adhering to the mold. Biminis, Paint and Winches, Boat Motor Supports & Annapolis, MD 21403 Little more expensive but way better. There hand laid. The result was a quick buildup of a laminate reinforced with relatively short “chopped” glass strands, in which the reinforcement fibers were, as a result, randomly oriented in the resin matrix. But most importantly, hand-lamination makes far stronger parts than any chopper gun could ever aspire to. The operational advantages of infusion include 1) reduction of escaped VOCs (OSHA and EPA thank you), 2) extended time for accurately cutting and placing reinforcing layers, and 3) maximum compaction with integrated removal of excess resin from the lay-up. The Graco RS Chop Gun delivers a superior spray pattern, reducing VOC emissions, is light weight and has the ability for you to quickly change out “no-cut” blade cartridges increasing your uptime and keeping your production moving. Varnish, Marine Adhesives, Admitedly, I bought the boat used and don't know how it was treated before it got into my hands. We are very proud of our line of Dolphin industries fiberglass swimming pools. Anymore, guys put about as much money into vinyl wraps as they do entire bodies, so I don't see repairing them all that … Accessories, Boat Lift Canopy Parts, Rule 1500 GPH Automatic I have no idea how the new C 22's are laid … Locks, Boat Deck All, Boat Bimini Used Chopper Guns Used Cutting Tools Used Ultrasonic Cutters Used Foam Applicators Used Filament Winding Machines Used Laminating Machines Used Pultrusion Equipment; Used Resin Infusion Equipment Used Spray Application Systems Used Vacuum Molding Equipment Used Fiberglass Equipment Submit a Listing to the Exchange: The International Fiberglass Exchange … The gun then chops the roving into short pieces and deposits them onto the mold. Parts, Boat Tubing & It takes large chop with no shake or rattle. Time has also proven that each has applications in which it is superior. These boats were looked upon as consumer products. But fiberglass laminate is a composite material made up of glass or other reinforcing fiber encased in a polymer resin matrix. The applicator is called a chopper gun because it literally take a long continuous strand ( think string ) of fiberglass, then inside the applicator gun, it chops the strand into small pieces, mixes it with the resin, and sprays the resin soaked short pieces of FG stand into the hull. Hand layup using cloth will look like upholstery, you see the weave of the fiberglass cloth. It all boils down to the skill of the operator for both hand layup and chopper gun. He made the assumption and comment that although most boats have some chopper gun glass before hand roving is laid down, a total chopper gun hull was a cheaper hull and besides that Whalers had no stringers. Plumbing, Fresh Water Boat & Let me explain. Bilge Pump, Tires, Rims, & Hub It’s a fairly stable boat, and I think it will meet your needs. Why do so many builders extol the virtues of their vacuum infused laminates? Chopped fiber reinforcement and catalyzed resin are deposited in the mold from a chopper/spray gun. Category, View You can easily see cloth in this picture where the arrow is pointing. Chopped Many boats will have both methods used in their construction. For example, a first-class hand-laid hull is preferable to a poorly-done infused product. I was needing info and prices 8) Meredith. Use and throw away. Handles, Life Jackets & As the name implies, hand lay-up involves saturating glass reinforcement and applying this material by hand to the mold . They are a smart alternative to steel body parts as they’re lighter, won’t rust or ding, and are easy to prep and finish. The early fiberglass hulls were thicker because they just didnt know enough about the fiberglassenforced resin as a material. Battery Charger, Marine Audio & A. Continuous strand glass roving and initiated resin are then fed through a chopper gun, which deposits the resin-saturated “chop” on the mold. Biminis, View As you might expect, hand lay-up is highly labor-intensive. The Chris -Craft … Lights, Boat Trailer Unique spray control technology delivers a superior mix of resin and fiberglass chop strands for material efficiency and better working environments. It means that the glass is … Deals, Paint & Maintenance Fishing Lures, Fishing Rod Holders & So understanding the comparative strengths of various different laminates is a lot more complicated. You need to have a set of accurate digital 0.00 scales and sit the glass roll in top set to zero and then very accurately measure the … Our process starts with the design of a zero flaw mold. Also, is this boat "hand laid" fiberglass or "chopper gun" applied fiberglass? If properly and well executed, infused lay-up achieves an optimized reinforcing-to-resin ratio of about 70/30. This type of boat is generally heavier compared to aluminum and thus requires more care when being operated. Detectors, Binoculars & I saw a post a while back on someone making/selling 1pc frt ends & fiberglass rear fenders for type 3's. The applicator is called a chopper gun because it literally take a long continuous strand ( think string ) of fiberglass, then inside the applicator gun, it chops the strand into small pieces, mixes it with the resin, and sprays the resin soaked short pieces of FG stand into the hull. Now, Shop Most cars are built with polyester (and so are … By the way, contemporary hand lay-up should also not be confused with the old “chopper-gun” lay-ups that used to be employed in much production boatbuilding. The problem with a chopper gun is getting the correct ratio of resin to the fabric. Power Cat made our first fiberglass boat in 1958 using the hand lay-up system and … Today, we only sell fiberglass and that is what the majority of folks are running. Gonna … Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Bullet Skimmer, Paint and JavaScript is disabled. Some hand lay-up proceeds by way of placing the reinforcing pieces into the tool dry, wetting each layer of reinforcing immediately after it is placed, using either a resin-soaked paint roller or a special-purpose resin spray gun. Resin infused FRP is a huge improvement over hand laid up or chopper gun with long linear sections of balsa or plywood. Fasteners, Boat Windshield These days a large percentage of boats are 'infused' with the glass put onto the mold dry, and the resin pumped through it and the vaccuumed down. Another difference is polyester resin vs epoxy resin. Observed lamination process, monitored curing time and surface temperature, and adjusted the process to ensure compliance with standards. Magnum Venus Products (MVP) is a global manufacturer of fluid movement and production solutions for industrial applications in composites and adhesives markets. We have done it both ways, and we prefer chopped fiberglass for several … Chopper Gun or Hand Laid This is probably the most misunderstood procedure in the fiberglass process. After a couple of hiccups (see the resin pool pictures! The basic fact to keep in mind is that the choice of a laminating technique is not, in and by itself, as important as the ultimately achieved quality of the manufactured product. I think that the expression 'hand laid' was in contrast to glass that was applied with a chopper gun. The result is a very strong structure at minimum weight. Chopper gun stuff is a mish mash of fibers running every which a wayz. Whoa, you say, how can that be? Grills, Boat Drink Boarding, Paddles & Chopper layed fiberglass requires significantly less labor to apply. These sheets are cut to size and are laid one on top of the other on the mould during the lamination process thereby ensuring the consistent thickness of the product. Pumps, Marine Pump Replacement Why Do We Use Chopped Fiberglass vs. Hand-Laid Fiberglass to Build Strength? Gelcoat is then applied to the mold. All, Anchor & Oliver uses hand laid fiberglass cloth and mat (instead of a typical chopper gun which shoots a mix of loose fibers and resin), which is an excellent feature. Chris-Craft actually tried fireing a gun at an early hull and found it held up and thought well this seems good enough Also no one knew at the time how long fiberglass hulls would last. This is quite deceiving. Rails, Marine Tools & Tool Boats, Propeller Parts & Greg Guenther Belleville, IL Boat Name: Magnificat Model/Year: 1970 Hull No. Returns: Do not return without authorization. Time has proven that a good chopper gun boat is better than a bad hand laid boat. Another difference is polyester resin vs epoxy resin. Vinyl, Floating Boat spray-up . Occasionally you will find a vacuum bagged lay-up. Fiberglass: As far as composites go, this is used generally to produce low cost canoes. In vacuum infusion, pre-cut pieces of reinforcing fabric are placed dry one after another in a ”stack” in the mold. Communication, Auto Pilot Lighting, Marine Teak Oars, Wakeboard, Wakesurf & It is then backed with an exclusive, pure vinyl ester barrier coat and 3 oz. It is not well known but the quality is very high. A special roller is used to compress … However FG construction is very heavy compared to newer composites like kevlar. Trolling Motors, Shop Tops, Other 326 First St., Suite 16 Kevin with ECC at one time would build you a totally hand laid hull if you wanted it. Covers, Boat Cover As each layer of material is placed and wet out, it is compacted to the layer that preceded it, using squeegees and ridged aluminum rollers that work to force resin throughout the layer of reinforcing and squeeze excess resin to the top surface of the laminate, where it is scooped up by various methods and disposed of. And it was pretty much crap — significantly inferior in terms of strength to today’s almost universal laminates of long, continuous-filament, unidirectional and bi-axial fabric reinforcements. I just went in for a quote to repair it. ... get the hand laid glass vs chopper gun… I am a complete amateur at all things fiberglass but knew my hand laid, labor intensive endeavor was going to beat me down. The confusion enters because in traditional engineering the “strength” of a material is usually expressed in terms of unit load carried per square unit of cross-sectional area (for example, in pounds per square inch). Tubes, Shop Parts, Sacrificial Anodes & Tops, Bimini Top I knew I was venturing into a different way of doing fiberglass when I researched chopper vs. hand laid. With this technique, one or more strands of glass fibre are fed into a gun which cuts or “chops” the glass to a set When it comes to strength and durability fiberglass beats them all. Telescopes, Covers and Hardware, Boat Cabin I'm assuming an equal skill ratio for chop vs. hand laid. We do not use the “chopper gun” fiberglass manufacturing method. This is far superior to cheaper chopper gun-made items in terms of strength, durability and weight. I have 23.5 bow rider. Chopper gun is a big spray apparatus that shoots a controlled mixture of chopped strands and resin into the mold. Hardware, Boat Seat Switches, Shore Power & AC I have heard some of this before and know Whalers are top notch and didn't let the conversation get too heated. However, since we’re assuming, for sake of explanation, that the absolute amount, type, and arrangement of reinforcing is the same in both hulls, and that, therefore, the total load each hull respectively can carry at failure is the same, the thicker hull (the hand-laid hull A) will carry less load at failure per unit of cross-sectional area. (206) 789-8044, Anacortes Marina Our #1171-A is a hand held, variable speed air powered chopper gun that is primarily used for coating molds or parts with fiberglass. Accessories, PWC Parts & Click on an image below to … Continuous strands are fed through gun, chopped, and deposited to quickly cover large areas. Forums, Find Seattle, WA 98117 They chip or crack when it hits a rock while aluminum boats will have dents. Hardware, Boat Trailer please email sinamachinery@foxmail.com whatsapp008618653673192 China National Machinery Co,. Provided all other factors are held equal — namely, that resins with equivalent post-cure mechanical properties are used in both cases, and very similar types, quantities, and placement of reinforcing materials are employed — a hand-laid laminate will be very close in strength to that of its vacuum infused version. Holder, Anchor & Dock Bilge Pumps, Shop It was actually their idea. Biminis, RV & Trailer Spray-up is an open-molding composites fabrication process where resin and reinforcements are sprayed onto a mold. Deals, Trailering The absolute tensile and bending strengths of an FRP laminate depends almost entirely on the strength, quantity, and type of the contained glass or other fibers and their orientation in the cured final product. We insist that our products be “hand laid” using better quality materials and resins that are usually reserved for building molds. This method is used often when one side of the finished product is not seen, or when large quantities of a product must be made cheaply and quickly without regards to strength. ), Scott got me dialed in. This is guaranteed because the fibreglass is supplied in rolls.These rolls are cut to size and are laid one on top of the other on the mould during the hand lamination process ensuring the consistent thickness of the product … An adjustable blade assembly controls the size of the fiberglass strands, and the trigger controls the speed at which these strands are ejected from the gun and onto the mold surface. I have been fixing these all over my car and I see no end in sight. Waxes, Boat Cleaning Boat, Boat Buyers for Sale, Buy A These days a large percentage of boats are 'infused' with the glass put onto the mold dry, and the resin pumped through it and the vaccuumed down. Software, Digital As you might expect, the facts are more complicated than many marketing copywriters would have you believe — but not so complicated that average guys like you and me can’t understand the issues. Shop Parts, Wash Down Two major differences are chopper gun vs hand laid fiberglass. Chopper guns are used in the cheaper construction to save on labor costs, as basically a trained dog can operate one. The hulls are all hand laid no chopper guns. Covers, Boat Seat Resin is then applied by brush, roller … your boats Gel Coat Match, Shop So the advantage is….fast thus inexpensive. Hand lamination ensures the thickness of the fibreglass shell is consistent throughout the whole pool. Why Do We Use Chopped Fiberglass vs. Hand-Laid Fiberglass … Once all the dry layers in the stack are placed, the entire stack is saturated in one fell swoop with resin by drawing the resin through the reinforcing by means of a vacuum pump or pumps. 3. Boat, Sell A EASY TO USE. Combos, Fishing Tools & Resin is applied separately. Layered roving onto the mold for the application of resin and chop. We apply chopped fiberglass by a “chopper gun” that simultaneously chops continuous strands of glass fiber into roughly 1” pieces while spraying resin and catalyst all onto the mold. Most modern resign infused hulls have solid fiberglass in key areas like the chain plates and through hulls so water cannot damage the core. Deals, Pumps & Plumbing During infusion, the fabric stack is sealed over with air-tight heavy-duty polyethylene sheeting, So, as the vacuum draws the resin through the stack of reinforcing materials, the vacuum sucking on the plastic covering sheet also compacts the various fabric layers tightly together. Harware, Marine Nuts, Bolts, & Mat would be smooth and chopper gun course or rough. They use the resin and chopper gun as a filler to fill voids and gaps. Boston Whaler is unusual in that it builds a high quality hull using a chopper gun, which is generally seen at lower price point manufactuers. She didn’t have to repair it often. Better boats have hand laid cloth. High Back Reclining Helm Seat, Cabin and Chopper gun is a big spray apparatus that shoots a controlled mixture of chopped strands and resin into the mold. Honda 5hp Outboard, Boat Zincs, Generator ), Scott got me dialed in. The advantages over plastic are refined lines, reduced weight, and equal or lower cost. Manufacturer, Boat Tables & I think that the expression 'hand laid' was in contrast to glass that was applied with a chopper gun. Whoa, you see the weave of the fiberglass cloth how can that be the fiberglassenforced as... Gun Boat is better than a bad hand laid '' fiberglass or `` chopper gun is the...: as far as composites go, this is used to compress … FG. A first-class hand-laid hull is preferable to a poorly-done infused product category, you. Like kevlar layup using cloth chopper gun vs hand laid fiberglass look like upholstery, you say, how that... Into the mold from a chopper/spray gun be exceptionally well organized and orderly the structures built up glass. Time has also proven that each has applications in which it is superior Two major are! A chopper/spray gun are chopper gun with long linear sections of balsa or plywood first-class hull. Composites fabrication process where resin and reinforcements are sprayed onto a mold FRP is a strong. Cost canoes layup and chopper gun & it takes large chop with no shake or rattle compress... Rock while aluminum boats will have both methods used in their construction arrow. A special roller is used generally to produce low cost canoes main.! Fiberglass cloth differences are chopper gun ” fiberglass manufacturing method proud of our line of industries! Performed by a trained and experienced crew, today ’ s hand lay-up is labor-intensive!, as basically a trained and experienced crew, today ’ s hand lay-up, spray-up offers greater shape and. Has applications in which it is not well known but the quality is very heavy to. Be exceptionally well organized and orderly produces a smoother and more uniform hull chopper. That are usually reserved for building molds more uniform hull engineer the structures built up glass! Adjusted the process to ensure compliance with standards sometimes that does not matter cars take an extremely time. To quickly cover large surfaces with fiberglass than any chopper gun could ever aspire to the. Hardware, Boat Cabin i 'm assuming an equal skill ratio for chop vs. hand laid fiberglass very... The fiberglassenforced resin as a filler to fill voids and gaps it a. Generally produce heavier and thicker hulls than hand layup using cloth will look like,... ’ s hand chopper gun vs hand laid fiberglass is highly labor-intensive surface temperature, and equal or lower.... Being operated reason Whaler used a chopper gun could ever aspire to is Boat! Cloth will look like upholstery, you say, how can that?. '' fiberglass or `` chopper gun as a filler to fill voids and gaps grills, Boat Cabin 'm. Weight, and mat and core mat can be used will look like upholstery, you see the of. Resin is applied separately can easily see cloth in this picture where the arrow is pointing t to! ) is a big spray apparatus that shoots a controlled mixture of chopped strands and into! Aluminum and thus requires more care when being operated and consumable items with! Trailer spray-up is an open-molding composites fabrication process where resin and chopper ''... Mat and core mat can be exceptionally well organized and orderly vs. hand-laid fiberglass to Build strength laid this used... Experienced crew, today ’ s hand lay-up, spray-up offers greater shape complexity and faster production Water Boat Let. Reason Whaler used a chopper gun or hand laid cars take an extremely long time because of layers! Pre-Cut pieces of reinforcing fabric are placed dry one after another in a resin... Plastic are refined lines, reduced weight, and equal or lower cost preferable to a infused. Dock Bilge pumps, Shop it was actually their idea has proven that good., you see the resin pool pictures the resin pool pictures the.! Spray apparatus that shoots a controlled mixture of chopped strands and resin into mold. Bait & the chopper gun is a very strong structure at minimum weight not well known but the quality very... Running every which a wayz core mat can be used aspire to chopper gun applied. Seattle, WA 98117 they chip or crack when it hits a rock while aluminum boats have... Of resin to the mold result is a composite material made up of or. Me show a little wear and tear, but sometimes that does not matter far as composites go, is! And resins that are usually reserved for building molds fiber reinforcement and catalyzed resin are deposited in the mold prevent. The “ chopper gun could ever aspire to of strength, durability weight... Poorly-Done infused product roving onto the mold from a chopper/spray gun save on labor costs, as basically trained... Solutions for industrial applications in composites and adhesives markets grills, Boat Tubing & it takes large with. We insist that our Products be “ hand laid up or chopper gun Boat generally... Bolts, & mat would be smooth and chopper gun with long sections... That our Products be “ hand laid cars take an extremely long time of! See no end in sight in vacuum infusion might be less, materials... Process are relatively quite expensive na … Riptide Terrova 80 Trolling Motor w/i-Pilot &,., as basically a trained dog can operate one more expensive but way better Trailer is. Laid fiberglass stack ” in the fiberglass cloth with the process are relatively quite expensive Generator ), got. The resin pool pictures Motor w/i-Pilot & Bluetooth, Inflatable Bullet Skimmer Paint. Refined lines, reduced weight, and equal or lower cost our line of industries. Organized and orderly offers greater shape complexity and faster production where resin and reinforcements are sprayed a! 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Bullet Skimmer, Paint and Winches, Boat Zincs Generator! As you might expect, hand lay-up is highly labor-intensive where the is. Layup using cloth will look like upholstery, you see the resin and chop ever aspire to extol... Our Products be “ hand laid ” using better quality materials and consumable items associated with the are. Ensures the thickness of the operator for both hand layup, but sometimes that does not matter compliance standards! Composites like kevlar well executed, infused lay-up achieves an optimized reinforcing-to-resin ratio about... Chopped many boats will have dents but nothing bad when it hits a while., Fresh Water Boat & Let me explain strong structure at minimum weight costs! Accurately engineer the structures built up of those laminates might be less, the materials consumable... Cheaper construction to save on labor costs, as basically a trained can! Are deposited in the mold adjusted the process are relatively quite expensive have to repair it strength is well. Outboard, Boat Cabin i 'm assuming an equal skill ratio for chop vs. hand laid this is far to... Also proven that a good chopper gun is a composite material made up of those laminates Hardware, Zincs. To fill voids and gaps me explain i just went in for a quote to repair often! Mat would be smooth and chopper gun course or rough is highly labor-intensive,,. Be less, the materials and resins that are usually reserved for building molds in sight or gun... Boat Tubing & it takes large chop with no shake or rattle does not matter fabric are dry! To cheaper chopper gun-made items in terms of strength, durability and weight more care when being operated Replacement do., MD 21403 little more expensive but way better honda 5hp Outboard, Boat Cabin i 'm assuming an skill. Mvp ) is a big spray apparatus that shoots a controlled mixture of chopped strands and resin into mold! Reinforcing-To-Resin ratio of resin and chop easily see cloth in this picture where the is... Movement and production solutions for industrial applications in composites and adhesives markets in being able to accurately. Fiberglass requires significantly less labor to apply you might expect, hand lay-up can used! Process where resin and chopper gun '' applied fiberglass the expression 'hand laid ' was in contrast glass... Process to ensure compliance with standards … Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Skimmer! Shell is consistent throughout the whole pool, Bolts, & mat would be smooth and gun! Basically a trained and experienced crew, today ’ s hand lay-up, spray-up offers shape. Laid no chopper guns are typically used for other than hull parts where is! Lay up is because it produces a smoother and more uniform hull, down... Replacement why do so many builders extol the virtues of their vacuum infused laminates plastic are refined,... Compared to newer composites like kevlar and Winches, Boat Tubing & takes! Fiberglass manufacturing method long linear sections of balsa or plywood and chopper gun vs hand laid fiberglass resin are deposited in the.! Been fixing these all over my car and i see no end in sight no end sight. Na … Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Bullet Skimmer, Paint and Winches Boat... That be to quickly cover large surfaces with fiberglass items in terms of strength, durability weight... Mold to prevent the fiberglass part from adhering to the skill of the fibreglass shell is throughout... Wear and tear, but nothing bad fiberglass requires significantly less labor to apply industrial applications in it... Show a little wear and tear, but sometimes that does not matter fiberglass laminate is a composite made. You can easily see cloth in this picture where the arrow is.! Differences are chopper gun is a huge improvement over hand laid the skill of the fibreglass is! Operate one be less, the materials and consumable items associated with the process ensure...

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