
Startup
Pool startup is less costly and time-consuming compared to other finishes as polymers are inert and they do not react with water chemistry. There is no induction or brushing period required and less trips are made to the pool—just simply add the startup chemicals. Pool startup can be achieved faster and easier because there are not a lot of water parameter adjustments that need to be made to bring the water into balance. Further, pool chemicals are more efficient; therefore, less are used. With cementitious materials there is an interaction between the water and the surface.
Hot water spas
Hot water in concrete spas is aggressive on cement-based finishes. Typical issues include spalling, roughness, black algae, and loss of esthetics. Snagged bathing suits of swimmers is another common complaint. The glass coating compound delivers a tile-like finish so black algae cannot adhere. Commercial spas are heated to upward of 40.5 C (105 F). The compound performs well in these temperatures (and even higher) so repeated resurfacing is not required.
There are also several advantages for remodelling contractors. The product is sprayed and does not need to be worked with trowels or rollers. Preparation is minimal and can be applied to marginally prepared surfaces. With a low labour requirement, speedy application, and a temperature-dependent quick cure time, spas can be completed in 1.5 hours.

Micro-glass coating spa surfaces:
• will not get rough especially in the hot water environment of a spa;
• can be modified to address cracks and leaks;
• will not readily stain;
• are resistant to black algae;
• are unaffected by high salt concentrations;
• provide a forgiving surface; and
• are non-sensitive to out-of-balance pool and spa chemistry.
With all the pool resurfacing products available, micro-glass coatings are a strong contender for resurfacing pools and spas. When it comes to refinishing pools and spas, high-performance, glass-reinforced polymers offer one of the lowest life cycle costs and can be used to address a variety of pool and spa surface issues.
Peter Gibson is the technical director for GRC Composite Coatings in Hayward, Calif. He has been involved in the composite coatings industry for more than 30 years. Gibson is a consultant and specifications writer for composite coatings and linings projects and an instructor for the certified applicator training course.
He can be reached via email at resinmaster@gmail.com.