No. Paint acts as a bond break which can cause VBM to not work to its fullest potential. Substrates should be clean and free of dust and other potential bond breakers. For concrete surfaces, sandblasting is recommended to ensure removal of all paint or other potential bond breakers.
While our mortar sample channels are made in a controlled environment, the final color of any mortar product is affected by jobsite conditions such as weather, amount of water used in mixing, tooling, striking time, and the type of finish applied.
Yes, a jobsite mockup is highly recommended. Jobsite mockups allow the owner and installer to review product placement and finish, prior to construction. Evaluation should include finish techniques for grouted joints. The finishing can enhance your finished project but may also impact the final color or joint grout or pointing mortar.
VBMs are designed specifically for bonding stone veneer. It is not recommended to grout with VBM, as the polymers will tend to stain the stone veneer. Also, the color is affected by the additives in VBM, and it does not produce the same color as a standard mortar will produce.
No, VBM mortars are not recommended for ceiling applications.
No. MAC Plus Mortars are recommended for use as a pointing mortar and should not be used to install CMU or brick.
