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FAQs

ProForm Finishing Products

Frequently asked questions

Find answers to common questions about ProForm products

Is ProForm mold resistant?

No material can be considered “mold-proof,” nor is it certain that any material will resist mold or mildew indefinitely. However, when used in conjunction with good design, handling, and construction practices, ProForm ready mix can provide increased mold resistance versus standard ready-mixed compounds. As with any building material, avoiding water exposure during handling, storage, and installation and after installation is complete is the best way to avoid the formation of mold or mildew.

How should ready mix be stacked?

Ready mix pails or cartons should not be stacked more than two pallets high.

What is the shelf life of ready mix?

Nine months in good storage conditions. To prevent spoilage and freezing, maintain the temperature at a minimum of 50˚F (10˚C) and protect the container from exposure to extreme heat and sunlight.

What happens if my ready mix freezes?

While not ideal, ProForm joint compound can go through up to 3 freeze-thaw cycles. Allow material to thaw at room temperature for at least 24 hours. When thawed, turn the container upside-down for at least 15 minutes. Turn 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 1 minute. Discard ready mix that does not remix to a lump-free consistency.

How much does a pail or carton of ready mix cover?

A good rule of thumb is to use nine gallons of ready mix for every 1000 sq ft of wallboard.

What is the difference between “Working Time” and “Setting Time”?

Working time refers to the period during which the ProForm setting compound is usable for application. At the end of this time, the material begins to stiffen and can no longer be spread easily. Working time should correspond to the required time for the actual application.

Setting time refers to the time after which the applied ProForm setting compound will become adequately hardened so that another layer can be applied. For manufactured or modular builders, the setting time should match your timetable for moving a floor along the line.

Why is the setting compound setting much slower than the advertised range?

Possible reasons for this to occur are:

- Too much water was used.

- Impure water source (dissolved organics in the water generally retard the set time).

- Foreign material (accidentally or deliberately) added to the mixture.

- Water too cold.

- The product was remixed after initial stiffening began.

Why is the setting compound setting much faster than the advertised range?

Possible reasons for this to occur are:

- Dirty mixing water and/or application tools.

- Excessive mixing of the compound.

- Foreign material (accidentally or deliberately) added to the mixture.

- Mixing water too hot.

Why does the setting compound display weak strength?

Possible reasons for this to occur are:

- Too much water was used.

- Foreign material (accidentally or deliberately) added to the mixture.

Why is my setting compund lumpy?

Possible reasons for this to occur are:

- Water was added to the setting compound, rather than the compound being added to the water.

- Setting compound was not allowed to soak (for approximately one minute) after the initial mix before remixing was initiated.