Which cement types have a temperature of 1900F?

• A. Rockwool Cement
• B. Finishing Cement
• C. Rockwool Cement and Finishing Cement
• D. One Coat Cement

Answer: (C)

High-temperature cement coatings used in insulation and fireproofing are rated for how hot they can safely withstand in service. A rating of 1900°F is very high, so only cements formulated for extreme heat will carry that specification.

Rockwool Cement and Finishing Cement are both designed to endure that level of temperature. Rockwool Cement is used with mineral wool insulation and provides a durable, heat-resistant bond and surface that stays intact at around 1900°F. Finishing Cement adds a high-temperature finish layer that also tolerates temperatures up to that range, protecting the underlying insulation and maintaining integrity under heat.

One Coat Cement, on the other hand, is typically intended for general high-temperature work but does not meet the 1900°F rating in the same way. It has a lower maximum service temperature, so it isn’t specified for that extreme heat level.

So, the combination of Rockwool Cement and Finishing Cement is correct because both are formulated to withstand about 1900°F.