|
|
 |
|
|
How does cold weather affect ready-mix joint compound? Find out with the Tech Talk
infomation listed here. |
|
|
|
 |
|
|
Ready-Mix Joint Compounds Subjected to Cold Weather Freezing
Conditions
By John Ferretti, Product Manager Joint Treatment and Texture Products
Every year during the winter months (approx. November 15-April 1) in colder climates
the industry is faced with the problem of Ready-Mix Joint Compounds freezing either
in transit or while stored in customer warehouses or at job sites. National Gypsum
Company recommends steps to prevent the product from freezing. In the event that
the product is frozen, please follow the steps outlined below.
After Ready Mix has been exposed to freeze/thaw conditions, three physical changes
are evident:
- There is an excessive amount of liquid separation
- It becomes very difficult to remix to a smooth, lump-free paste
- There are numerous crazing, cracks or fissures in the paste's surface
Note: These conditions vary in severity depending on how many freeze/thaws the product
goes through.
Freezing does not affect the quality of the Ready-Mix as long as the container is
intact and the material is remixed lump-free. If Ready-Mix is subjected to multiple
freeze/thaw cycles, the liquid separation will increase and it will become harder
to remix to a smooth, lump-free paste. It is recommended that an electric drill
be used for all remixing.
Once Ready-Mix has frozen, allow it to thaw at room temperature for at least 24
hours. When thawed, turn the container upside-down for a minimum of 15 minutes.
This will eliminate the need to pour off the separate liquid before remixing. Turn
the pail right side up, remove the lid, and immediately remix with an electric drill.
Ready-Mix should be lump-free and ready to use within one minute. Discard all Ready-Mix
that does not remix to a lump-free consistency.
>
Back to Tech Talk
|
|
|
|
 |
|