How to apply Seam Tape

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Cardboard boat race with Block & Wall

Seam Tape

Seam taping is an easy process and an important step in properly preparing your surface before applying Ames Coatings and Paints.

Why is it important?
Hot and cold temperature changes will cause a roof, wall, or deck to expand and contract. Over time, cracks and leaks can develop. The purpose of seam taping is to provide reinforcement over areas prone to splitting, such as seams or joints, and create a “bridge” that ties the surfaces together so water cannot seep through. Seam tape is used around roof vents, on flashings, over cracks and gaps, along the seams on metal or RV roofs, and in many other applications.

Ames' Adhesive Peel & Stick Seam Tape (Easy to apply adhesive tape)

Ames' Lightweight Seam Tape (minimal show-through)

Please do not substitute fiberglass or asphalt impregnated seam tape.

Ames'
Peel & Stick Seam Tape
Contouring - Self-Adhesive - High-Strength
For Concrete, Metal
and many other surfaces.
PS250: Size: 2" x 50'
PS450: Size: 4" x 50'
PS650: Size: 6" x 50'

For the best adhesion, prime all concrete and metal surfaces with Ames' Super Primer before applying adhesive seam tape. Ames' Super Primer is a pure acrylic that has an affinity to concrete, stucco, metal, modified bitumen, rolled roofing, EPDM, galvanized metal, and many other types of roof systems and wall systems gaps. Where adhesion is in question, always use Ames' Super Primer.
Concrete Application:

1. Peel off the backing.	2. Line tape up with seam.

3. Press firmly into place.	4. Seam tape is ready to coat.

Metal Application:

1. Peel off the backing.	2.Line tape up with seam.	3. Press firmly into place.


Photograph shows a crack in block wall primed with Ames' pure acrylic Super Primer before seam tape. The broken concrete block actually becomes stronger with Super Primer.	Crack is sealed with the shaping seam tape and coated with Ames' Block & Wall elastomeric rubber coating.	Here is a before & after sample of joined metal primed with Super Primer, seam taped and topcoated with Ames' Elasto-Barrier rubber coating. Especially for metal roofs and mobile homes.

	Lightweight Seam Tape
	How Do I use Lightweight Seam Tape? The process itself is similar to fiberglassing. You will need a pair of scissors or a utility knife to cut the tape. Use a 4” wide paint brush, and your choice of Ames coating to embed the seam tape into the coating.

	Step 1. Clean and Prepare the Surface. Be sure surfaces are clean and dry. Caulk all cracks greater than 1/8” wide with acrylic or butyl caulking or patching compound.



	Step 2. With a 4” wide paint brush apply a liberal coat of Ames’ Elasto-Barrier™ over the seam or joint about 5 to 6 inches wide. Roll the seam tape into the wet coating. Take care to smooth out any wrinkles.


	Step 3. Immediately brush a coat of Elasto-Barrier™ over the seam tape to completely saturate it and fill any pin-holes. Allow to cure. An additional coat is recommended. In most applications the seam tape will be dry in about 2 to 4 hours.

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