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09.05.2021 14:20:38
Generally one can achieve ratios of 2,5(resin) : 1(fibreglass) and lower with hand lay-up if one uses resin sparingly and you have enough time to properly wet out the glass fibre.
See full version: Costing Information Glass Reinforced Fibre
Generally one can achieve ratios of 2,5(resin) : 1(fibreglass) and lower with hand lay-up if one uses resin sparingly and you have enough time to properly wet out the glass fibre.
Resin, Gelcoat, Poolcoat and Flowcoat are some of the polyester resin products that use a minimum quantity of 1% catalyst (MEKP-NA2) and a maximum quantity of 3% catalyst (MEKP-NA2). more
If you use fibreglass surface tissue, then you need 4 times the weight of the surface tissue in resin to wet it out. here
Again if you had 2 sqm of 2mm coremat you would then use:-
Area in sqm x thickness of coremat x Resin ratio per mm thickness = total quantity of Resin needed.
eg 1: 10 sqm x 1mm thick-Coremat x 0,600 kg of resin = 6 kg resin.
eg 2: 10 sqm x 2mm thick-Coremat x 0,600 kg of resin = 12 kg resin. here
Some of these cost factors may not apply to a particular fiberglass project. For example, if you supply Fiberglass Sales (the fiberglass fabricator) with a finished part, component, or plug, and we are able to pull a mold directly from that part or component, then there will be no charge for product design or plug development.
Product design cost is based on our estimated design time multiplied by our hourly rate. Product design services utilize full CAD development to minimize development time and cost and the time and cost required for design modifications and changes. more
Plug development cost is also a factor of design time and hourly rate. The cost to produce the plug is also affected by the complexity of the part or component and the type of plug required. Some plugs can be produced by hand or cut from foam, while others need to be milled from wood or machined from more complex material. here
Fiberglass mold development cost is based on the complexity and size of the mold. A small multi-faceted mold can be as costly as a larger but simpler mold (a box, for example). The projected number of future parts made from this mold will also affect the pricing. The more parts in the initial purchase order and the greater the number of parts projected to be made from the mold, the lower the price charged for the mold in both absolute and relative terms. here
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Weighs approximately 1.6 lbs per lineal yard here
Woven Roving, heavy fabrics woven from continuous filaments. Use for higher glass content, has good drape, and wet out.
Cut per yd., Up to 3 yds., 24 oz. X 50" Woven Roving [links]
Chopped Strand Mat , a random fiber reinforcement designed for use with polyester and vinyl ester resin systems. Uses a styrene monomer soluble binder to hold strands in place, not compatible with epoxy resin systems. Use as basic laminate reinforcement and for gel coat backup to minimize weave print through and pin air bubbles. Chopped Strand Mat is available in a variety of weights and widths to suit a wide range of applications. We have a convenient calculator for calculating the materials needed for a solid chopstrand mat laminate or molds here.
Cut per yd., Up to 3 yds., 18 oz. X 38" Woven Roving