WHY DO SEALER BLISTERS AND BUBBLES FORM?
Most sealers with less than 100% solids either drys or cures when the liquid portion of the sealer (water, xylene, acetone) evaporates after it helps transport the solids portion onto the surface of the concrete. Once the liquid portion evaporates the solid portion gets hard forming a film that helps protect the concrete. During this curing process air and some other gases need to escape. If the sealer dries too fast or to slow due to extreme hot or cold temperatures there is the potential for some of the gases to get trapped causing (blisters). Very windy and dry conditions could also dry out the surface of the sealer causing it to crust over and potentially trap some air causing (bubbles). Ideal temperatures for sealing concrete fall between 50 – 80 degrees, read the manufactures specifications for best results. HOW CAN I FIX THESE SEALER BLISTERS AND BUBBLES? To resolve this problem for solvent based sealers you can try spraying or rolling on some xylene or acetone. If the sealer wa
