Is there a distinction between soft and hard fiberglass chopped felt?
Is there a distinction between soft and hard fiberglass chopped felt? Yes, there is indeed a difference in the softness and hardness of glass fiber short cut felt, because the surface treatment agents of glass fiber are different. As an old fiberglass, I generally prefer a soft and short cut felt, which makes it easier to cover the mold and corner positions. This is a contradiction point, and a softer one will mean that the chopped felt appears slightly fluffy or has fiber residue, without texture. The representative product is powder type chopped felt.
Emulsion felt is relatively hard, but quite flat. Generally, fiberglass workers prefer emulsion felt because it is easier to cut and does not cause fiberglass to fly around.
Especially at low temperatures, glass fibers tend to be harder than usual. It is generally recommended that you choose this method: for complex mold and product structures, if you choose powder felt, it will better soak and facilitate thick layer laying. Some large, smooth structured products can be manufactured more quickly and smoothly using emulsion felt.
——
