A number of practical ways are recommended for clamping Perma-Cote.

If a power drive unit that spins the conduit is used, the chuck should be equipped with inserts designed specifically for PVC coated conduit. These inserts are available through a local threading equipment distributor.

When using a pipe vise it is recommended that the jaw assembly be replaced with Perma-Cote Jaws 3 vise adapters.

These adapters spread the clamping force over a larger area, which helps prevent spinning of the pipe during cutting and threading operations.

If Jaws 3 adapters are not used, wrap the area of the conduit to be clamped with emery cloth coarse side down. This will increase the friction created by the vise jaws and help prevent spinning of the pipe, thereby reducing potential damage to the coating.

We have developed half shell clamps to protect a large surface area when conduit is clamped in a chain vise. The aluminum nickel bronze clamps allow for a strong grip without damaging the exterior coating of the coated conduit. 1/2 shell clamps are available in sizes 2 through 6 inches.

When a chain vise is used special care must be taken to prevent damage to the exterior coating.

On a power drive unit inserts should be used that are designed for PVC coated conduit.

When using a pipe vise it is recommended that the jaw assembly be replaced with Jaws 3 vise adapters.

When using a pipe vise it is recommended that the jaw assembly be replaced with Jaws 3 vise adapters.