Prompt Cement General Usage Instructions
PROMPT CEMENT will reach its final set very quickly under normal conditions, no special curing is required. However, under high temperature, low humidity or strong winds, the mortar/concrete must beprotected from rapid drying. Use a liquid curing compound, wet burlap or polyethylene sheeting is recommended.
The same as for any other cement/lime composition, ensuring that the mortar, render or concrete have been properly placed to the standard required or expected for the function of the material being placed.
- Apply only to a clean, sound properly prepared substrate
- Always use clean sand and mix on clean surfaces
- Unless the sand is completely dry, mix with PROMPT at the same time as the water
- Do not re-temper once initial set has begun
- Do not mix more material than can be placed in the time it takes to set
- Temperature affects the setting time. Hot weather accelerates setting and cold weather slows it down
- Wash all tools and equipment immediately after use.
- Maybe mixed by manual or mechanical means
SOME TYPICAL SUGGESTED MIXES
GENERAL PURPOSE MORTAR:
1 VOLUMES PROMPT
1 VOLUME CLEAN SAND
⅔ VOLUME OF WATER
GENERAL PURPOSE CONCRETE
4 VOLUMES PROMPT
2 VOLUMES CLEAN SAND
3 VOLUMES AGGREGATE
1 ⅓ VOLUME OF WATER
Proportions of PROMPT to sand can be varied according to use but the ratio of PROMPT to WATER should always be 3:1 by volume
A MORTAR OR CONCRETE MADE WITH PROMPT MAY BEGIN TO SET IN 2" MINUTES at summer temperatures, depending on the type of sand and aggregates used
PROMPT AS A PURE CEMENT PASTE
3 VOLUMES PROMPT 1 VOLUME WATER
A CEMENT PASTE MADE WITH PROMPT WILL BEGIN TO SET IN 1" MINUTES at summer temperatures, depending on the type of sand and aggregates used
PROMPT as pure cement paste is only suitable for specialist applications i.e. sealing leaks to pipes
plugging running water through masonry etc.
All suggestions made here are advisory guidance purposes only. Please contact us for further information