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Glass fiber short cut felt impregnating resin
Writer:admin    Released:2018-07-31 16:15:17    Type:【L】【M】【S
Fiberglass short cut felt, in fabric form, usually sold in rolls and small folding packages.It is randomly oriented from 1 '-2' and is often used with styrene water-soluble binder, which ACTS as a glue to attach the fiber bundles.Adhesives are designed to dissolve in contact with styrene in polyester or vinyl ester resins.Once dissolved, the fabric softens, allowing it to overhang around the curved shape.It weighs between 0.75 ounces and 3 ounces per square foot.The most used grams are 0.75 ounces and 1.5 ounces.
In the United States, short-cut felt is almost always sold or prescribed per square foot of ounce.This is different from glass fiber cloth and glass fiber fabric and oriented fiber layer (including woven fabric, stitched biaxial-triaxial fabric, etc.).These are specified in ounces per square yard.When a short-cut felt is attached to any of these fabrics (such as a mat on a fabmat or biaxial pad), the combined fabric is often referred to as the weight of the fabric.
Can epoxy resin be used to soak short cut felt?The answer is yes.The glass fiber wets the felt with epoxy resin, but the adhesive holds things together and does not dissolve.(it is put into suspension and sealed in a cured epoxy resin.)This undissolved adhesive causes the wetting pad to remain somewhat stiff compared to wetting with styrene resin.For items that are lightly bent or flat, such as the bottom of the cabin or plywood deck, pads and epoxy resins should work properly.
Plastic sheets can also be used in uncured epoxy resins and felt to compress fibers.The remaining air bubbles can be removed by piercing or cutting through the plastic before the foam begins to solidify.
When choosing short cut fiber felt that can be used with epoxy resin, look for soft, flexible cushions.Some forms are quite stiff and may cause wetting problems with epoxy resins.Hard felt is often old stock and fiber may need more time to soak the epoxy resin.

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