Filler Glass fibres 4.5 mm 1 kg.
Glass fibres 4.5 mm can be used to reinforce all kinds of resins like Acrylic, polyester, pu, epoxy and even silicone.
Acrylic resin with glass fibres and glas fibre cloth is a strong cheap way to build a support shell for your flexible silicone mold.
Please note that glassfibre cannot be stretched. If you want to add these fibres to silicone it will lose its elasticity.
- Cheap filler
- Easy to measure out