1. Polycore may be used in hand lay-up or spray-up techniques using conventional equipment.
2. Polycore should be cut to shape using scissors or knife.
3. After waxing the mould, gel coat is applied in the normal way and left to gel.
4. Apply resin to the mould.
5. Position the first layer of chopped strand mat.
6. Saturate the glass mat with resin and roll out thoroughly.
7. Apply additional resin onto the rolled out mat layer and position the Polycore onto the wet resin.
8. Add resin from the top surface to complete the wetting out process and roll out.
9. Polycore should be butt-jointed and after saturation, will stretch to form a neat joint.
10. It is vital to fully wet out the Polycore. (See product date sheet for resin consumption figures).
11. It is impossible to over wet Polycore, as the excess resin will flow to the surface and can be absorbed by the next layer of glass mat.
DO'S AND DONTS WHEN USING POLYCORE
1. Pre-cut Polycore to fit the mould.
2. Calculate the amount of resin to be used for the Polycore. (See product data sheet for details).
3. Ensure the Polycore is fully wet out.
4. Apply a layer of glass mat on top of the Polycore before the resin cures.
5. Up to three layers of Polycore may be placed directly on top of each other - reduce catalyst levels to avoid a build-up of exotherm.
1. Never place Polycore against the gel coat layer.
2. Do not use Polycore as the final layer in a laminate
3. Keep solvents such as acetone and methylene chloride away from Polycore, as this will inhibit the cure.
4. Do not overlap Polycore, but pre-cut to butt join.
STORAGE OF POLYCORE
1. Keep Polycore dry at all times.
2. Store away from direct heat.
3. Store Polycore rolls vertically to avoid compressing the product and so affecting thickness.