Exterior joint sealing

Air temperature

4°C to 38°C

Surface temperature

Check manufacturer instructions

The Canadian data sheet specifies an application temperature of 4–38°C. Joint walls must be sound, clean, dry and frost-free. Condition the product as instructed; joint design and curing conditions also matter. No separate numeric surface limit or fixed post-application temperature window is recorded here.

Air temperature

Check manufacturer instructions

Surface temperature

Check manufacturer instructions

Rain-free window

24 hours

Protect from freezing

24 hours

Both current Canadian White/Colours and Clear DYNAFLEX 230 sheets were checked. Directions require application strictly above 4.4°C; their application-range tables list 4.4–37°C. Use above 4.4°C and no higher than 37°C, with no rain or freezing temperatures forecast within 24 hours. The sheets do not separately define air and surface limits. Joint surfaces must be clean, dry and sound. White/Colours normally needs 2–4 hours before painting, longer when cool or humid. Clear applies white and can take 7–14 days to turn clear; wait until clear before painting. Service-temperature and freeze/thaw test values are not application limits.