Interior Plywood Floors

1) Tap down any nails or tighten screws. If the head of the nail or screw looks rusty, it should be replaced with a new galvanized one.
2) Scuff the surface with 100 grit sandpaper to add surface tooth for better bond.
3) Vacuum all sanding dust CAREFULLY. Good vacuuming, means good performance.
4) Treat the seams between plywood sheets with Weather Shield Flex - Damp Proof Rubber Coating and Flex Seam Mesh.

>> For live action details on treating seams, view the Flex® instruction videos for wood decks on the Weather Shield Flex product page.

4) Apply the desired spreadable stone finish as directed.

Exterior Plywood Decks

1) Tap down any nails in the boards or tighten deck screws. If the head of the nail or screw looks rusty, it should be replaced with a new galvanized one.
2) Scuff the surface with 100 grit sandpaper to add surface tooth for better bond.
3) Vacuum all sanding dust CAREFULLY. Good vacuuming, means good performance.
4) Plywood must be at least 5/8 exterior grade on 16 joists. Posts should be installed to a depth below the frost line. Fill all holes and gaps with Flex Elastomeric Compound before proceeding with application of Weather Shield Flex.
5) Treat the seams between plywood sheets -- and then the general surface with Weather Shield Flex - Damp Proof Rubber Coating, and Flex® Seam Mesh and Reinforcing fabric. This will create a highly durable, resilient, water-proof base upon which you can install your desired spreadable stone coating.

>> For live action details on treating seams and installing the reinforcing fabric, view the Flex® instruction videos for wood decks on the the Weather Shield Flex product page.

5) Apply the desired spreadable stone finish as directed.

Contact us for clarification about any surface or if you have any technical questions at info@techstone.ca or call 1-877-279-0694.

Plywood
Preparation...
The key with wood is to be sure it is dry, clean, free of sanding dust and peeling paint — and is sound.
If any portion of the plywood surface needs to be cleaned, do not use large amounts of water, which will soak into the wood. A damp sponge for quick wipes is acceptable.

Otherwise sanding is recommended to "shave off" problematic areas and avoid water use before coating.

A wood moisture content of about 15% is ideal.