Is it OK to render onto high suction blocks like Thermolite or Duroc blocks?
Yes, but a 3mm Universal key coat must first be applied to kill the suction. If render were to be applied directly, the water in the mix would be drawn out too quickly allowing the cement to dehydrate, giving the render insufficient time to harden and consequently resulting in poor adhesion and a powdery, weak surface.
Related Questions
- For the Mankuara pyramid, is it ok if both blocks (one block, golden top block) are preloaded before the match starts or automatic unit has to load those blocks by itself?
- Is it OK to render onto high suction blocks like Thermolite or Duroc blocks?
- Why does the calibration process continue beyond "OK" into "High" or "Over"?
