12:42AM | 07/22/05
Member Since: 07/21/05
2 lifetime posts
We are building a commercial masonry building using split face block. We will need to seal the block face from water penetration. We want to paint the block as they are plain grey and not factory stained. I read in a trade journal recently about a few new coating products that are excellent "one-coaters" - they prime/fill and are a durable finish all-in-one coat. We are going to be tinting the coating a light color and the block will have been cured in 100% open sunlight for about 14 days at 80 degree temperature - Michigan summers! The building has about 10,000 sq ft of masonry surface to coat. Anyone know of these products that I read about - one coat or similar? Andy Roach - Mandaker Development LLC.


04:28AM | 07/30/05
Member Since: 07/28/02
1356 lifetime posts
First I will address two things in your question. New block needs to cure at least 30 days before painting as the mortar needs to cure and heat does not do this and there are no one coat systems that I know of for uncoated block and in my opinion a one coat system would not hold up over time and you would be out repainting the building sooner than you should. Split faced block is hard to get coated well because of the profile and you only get one chance to do it right the first time.

I would go with an elastomeric system on the building and if you go to a paint store in your area such as Sherwin Williams they will be able to give you to proper specs on doing your building.
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