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The Waterproof Pro Seam Tape™ is the tougher, stronger, and more durable choice for your crawl space encapsulation. Made by one of North America’s leading tape manufactures with our proprietary adhesion requirements, you won’t find this tape at any of our competitors….

This product uses our pressure sensitive adhesive formula that achieves 100% strength in 15 minutes at 70 degrees F. How strong is 100% strength? 4.70 pounds of adhesion per square inch! No one can say that about their tape…

Sold individually or in bulk. Save on orders of 12 or more rolls.

Price: $32.99
In stock
    Availability: In Stock
    Ships Next Day or Sooner™
    WST-PRO

    Quantity:
    Item #: WST-PRO
    Availability: In Stock
    Ships Next Day or Sooner™

    Quantity

    12-2324+

     Price Each 

    $28.04$20.00

    This tape is used to seal the seams of the crawl space vapor barrier. It comes in  4" x 187' rolls (compare to rolls at only 108') and is white to match all of the vapor barriers we offer. This product, when installed correctly, will give you a waterproof seal at the seams. In very wet conditions it is recommended to use the Foundation Seal Tape™ under the seam to give an extra layer of protection. This tape is the perfect thickness for this application allowing proper flexibility without sacrificing strength.  "Cheaper" tapes are known to release when they come in contact with moisture leaving your crawl space exposed. Just because other tapes are white does not make them the same. 

    This product is Field Tested and the only tape we warranty on our installs.
    If you save $5 on a roll of tape and it fails, did you save $5?


    Sold individually, or buy in bulk. Save on orders of 12 or more rolls!

    This tape comes in one roll that is 4" wide and 187" long. 

    How much tape do you need? Here is the guide we go by- 1 roll of WST for every 500 Sq Ft of floor space rounded up. For example; 400 Sq Ft you need 1 roll, 700 Sq Ft you will need 2 rolls, 1600 Sq Ft you will need 4 rolls etc. In addition you will need one roll for every 6- 8x8 or 8x16 support. Case includes 12 rolls- Save 15% on orders of 12 or more rolls.

    Overall Customer Rating of 121 Reviews:

    Perfect Tape

    Rating:
    Pros:
    Cons:
    Everything was perfect👍

    Works perfect

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    Great tape works perfect and does the job needed to do. Plenty of tape in each roll highly recommended

    Louisville

    Radon

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    I covered my dirt crawl space, bought a Fantech fan, built a 4” exhaust system and a 3” intake system servicing the crawl space, lower concrete slab and the garden level concrete slab. We dropped our radon reading from over 9 to a little over 1. We used your plastic system along with your tape. We are pleased with the results.

    Clarksville TN

    Does the job

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    Good tape. Used with 15mil vapor barrier and it does the job. Typical tape, hard to start if you don't have good fingernails and sometimes it would split when I tried to start but in general a great product that really seals the seams.

    Saved so much money

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    I was able to purchase all material with a dehumidifier and condensation pump for 3700 lower than the best estimate I got without one. Took me a few days to do this. It is awesome.