The "HK Ruler Test".

Does your gel coat measure up?

Let's begin where your customers do: appearance. Do your products have that deep lustre that says quality? The gel coat you applied is less than 20 mils thick, but it should look like a bottomless pool. Try the HK Ruler Test for yourself. If you are not using a premium gel coat from HK Research then your lustre is not as deep as it can be. Our gel coats aren't loaded down with cheap bulky "extender fillers" that dull your product's finish - and your customers' interest.

The HK Ruler Test.