DOWSIL™ 799 EU Glaze and Go Sealant is a one-part neutral curing, low modulus silicone sealant specially formulated for glazing and weathersealing, which provides a clear or bright white finish on most plastics, including PVCu and polycarbonate profiles and panels.
Excellent product, easy to apply, gives you time to make changes before it goes off completely. I have used many similar silicon products but have found this just right in all aspects, not overpriced either. Recommended