What are the weight solids of my roof coating?
Weight solids is a measure of the “weight percent” of the roof coating in the can. It is an arithmetic computation, of a simple laboratory test, where a sample of the coating is accurately weighed and placed in an oven and the liquid is allowed to evaporate. The sample is reweighed. The weight of the dried sample is divided by the weight of the wet sample and described as a percentage. Hence if a 10.0 gram sample of wet coating is dried in an oven and reweighed if the dry weight is 5.0 grams, the coating is 50% weight solids. This provides some indicator about the amount of quality in the can. The specification for weight solids will aid the purchaser in determining how much value there is in the can.
