Never used fiberglass before and I am hoping to try and repair a broken concrete wavy roof tile. I have glued one back together before with rem-chem resin used for fixing threaded studs in walls and then a bit extra buttered on the back reinforced with Aluminium mesh which worked well.I believe fiberglass will stick to concrete - dust free.
When I am putting on extra layers of sheet do I wait until the first layer is touch dry or tacky or completely cured.I have a big boy kit from toolstation which says touch dry in 50 -70 mins but it doesn't say when it will be fully cured.Also the mix is 300:1
bit of a faff to measure that out. Can someone point me to a make that has an easier mix ratio with less risk of getting it wrong.Are there also faster curing ones.
Thanks