GLASSCOAT POOL RESURFACING Why Glasscoat is the Best Choice Fiberglass Technology GLASSCOAT is the material that has modernized pool refinishing. It is the ideal material to contain water. This material is well known for corrosion resistance, low life-cycle cost, no periodic maintenance, and long service life. GLASSCOAT is inert and imparts waterproofing properties for cracked/leaking