Forget about sanding and laminating resin as sanding resin is simply laminating resin with a wax additive. The cloth is made from strands of glass woven together and the boards are made from two types of foam. PU and EPS foam. If your board is made with epoxy resin then you MUST use an epoxy resin to fix it.Click to see full answer. Also asked, can you sand laminating resin?-Polyester resin without wax cures with a surface tack which helps multiple layers to adhere to each other. It also does not require sanding between layers. If you do not want to purchase a finish resin you can add surface seal to the laminating resin for the final layer of your project.Subsequently, question is, what is laminating epoxy? Laminating epoxy (technically PR2032 + PH3660) is thin and lets you wet out cloth (fiberglass, carbon fiber, or Kevlar) really well. That’s what it’s for, naturally. Aeropoxy structural epoxy (ES6209) is thick and extremely strong. how do you cure laminating resin? Tech Tip: If you want to avoid adding wax to your thin polyester layup or repair, spray PVA mold release over the lamination or repair and the resin will cure tack-free. Wait 25 minutes after finishing the lay-up, then spray on two light coats.Will epoxy resin stick to polyester resin?That makes epoxy resin usually the best choice for fiberglass repair work. While epoxy adheres tenaciously to cured polyester, the reverse is not true, so the bond between an epoxy repair and an overcoat of polyester gelcoat will not be strong. Use polyester for repairs that will be gelcoated.