1. Bright and New/UV protection for non-skid Gelcoat is white, chalk (ane even partially broken down gelcoat) gets grey because it is more porous and absorbs pollutants. Part I of the F.glass trilogy (sort of like the GOdfather!) goes into this a bit. Basically you have to remove chalk and other oxidation products chemically both from the surface and from deep down in the pores eaten by oxidation (just like rust in metal). Our SEA GLOW product was designed to do this (as well as working on other plastics as well). The chalk is "drawn up" into the product on white paper towel - that is why the product is a "cleansing lotion" - works like a skin lotion. The pores are then filled with an inert clear conditioner that nourishes the gelcoat with anti-oxidant/free radical scanvengers, mildew ihibitors etc stopping the process from returning (that's why product is called a cleansing lotion & conditioner) AS LONG AS THE SURFACE IS SEALED TO KEEP THE CONDITIONER IN THE PLASTIC the aging process should then be halted. Because the conditioner also contains strong fluorescent agents UV from sunlight "lights up" the gelcoat making it "snowy white and, as a bonus diverts the UV into harmless visible spetrum light. I like the idea of sunlight improving things instead of destroying them! NEVER USE COMPOUND ON NON-SKID it will remove the bumps. Compound is advised only for sruface discoloration or excessively rough gelcoat (reducing need for too many layers of sealant). On SMooth gelcoat, our combined wax/resin sealant (SIMPLY BRILLIANT Superwax) provides and easy to apply coating that also contains anti-oxidant and is more "airtight" than regular waxes- it is applied in one or two coats. If you use conventional paste wax (we recommend Collinite Fleetwax)durability and gloss are cosiderably enhanced by sandwiching it between layers of our spray on sealant SILKENSEAL (also ideal for soft plastics such as fenders, inflatables etc). This product is also great for routine touch up of the shine as the wax surface itself begins to age. I noticed a lot of people talking about acrylic coatings Polygow, Newglass, TSRW, Vertglass, Starbright etc etc_/ At the best with very well prepared and dewaxed undersurface,they can be very durable but get down into the pores (how they work) and have a reputation for yellowing. Not a good idea on white gelcoat- to get rid of it wet sanding might be needed. Never use an acrylic on new gelcoat a wax is best. For sealing non-skid, participants in this forum have suggested "Future" floor treatment, but boat-type acrylics (as above) may be more durable. There is also Aurora Surestep probably also an acrylic ( have yet to test). These would not result in a slippery surface (as with wax). However color of gelcoat is a consideration (again, yellowing of acrylic on white). If you can wait 5 weeks, we will have our new non-yellowing non-skid sealant that has been tested since last summer over here and on B-test participants. I have been lately using a more concentrated form than that I sent out last fall. 2. PAint or Gelcoat This is a great query. The first comment I have is that if you had a coating over the gelcoat (Superwax or an acrylic), the cement could have been removed by removing the coating underneath. However, in this case it's a moot point. You should definately get the owner of the cement works to pay up for the damage. Removing the cement with muriatic acid is an idea but gelcoat is not as tough as the plastic bottles used ot contain the acid. I will personally test this idea out on some old pieces of boat that I have. BUT- Could damage gelcoat, fade colored gelcoat and make more porous! If chipped off, (and presumably you have plenty of gelcoat thickness, I would use minimal abrasion to "blend in" very fine wet or dry or else (I like) 3M synthetic steel wool OOO (very fine) on a wood block. Then DO NOT USE AN ACRYLIC. Use regular wax, or I will send (No charge) a 1 Oz of our SUperwax coating (that fills in sratches) for you to try. Just give me a testimonial if it works!. Thanks for great questions. Jim Willis Pres ISLAND GIRL Products. On gelcoat non-skid an acrylic may be OK for sealing the surface (FU On non skid decking,