Mfr:Protecto Wrap

Protecto Wrap SafSeal 6634 Butyl 40 mil 36" x 67' Roll

Item #: PW6634-36.RL*NA

Mfr. Part #: 882636

Protecto Wrap SafSeal Systems PWC - 6634 Air & Vapor Barrier/Wall Flashing is a peel and stick membrane for use as a positive air/vapor stop in everyday building construction. PWC - 6634 is a 40 mil cross-laminated, thermal-resistant, polyethylene-backed, synthetic butyl rub...

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Available: 0

Case Quantity: 1



San Diego






Salt Lake




San Marcos


(*) Minimum Quantity: 1

About This Product


Protecto Wrap SafSeal Systems PWC - 6634 Air & Vapor Barrier/Wall Flashing is a peel and stick membrane for use as a positive air/vapor stop in everyday building construction. PWC - 6634 is a 40 mil cross-laminated, thermal-resistant, polyethylene-backed, synthetic butyl rubber-based adhesive waterproofing membrane that fully bonds to most substrates though the primer course. PWC - 6634 has excellent conformability characteristics to irregular surfaces, low temperature adhesion, and high temperature flow stability. The synthetic Butyl rubber compound provides excellent thermal resistance to high-temperature and extreme low temperature environments in cavity wall and thru-wall applications. The butyl compound adhesive has been tested and proven not to cold flow at elevated temperatures up to 300°F (149°C).

PWC - 6634 is compatible with and will adhere to steel, wood, concrete, building paper, block wall, dry wall, insulation board and Dens-Glass Gold. PWC - 6634 has a coated release liner and is available in a variety of roll widths, both of which contribute to its ease of application.


  • As a thru-wall flashing membrane, used in conjunction with cavity wall membrane
  • applications, or alone as a vapor/water transmission diversion membrane.
  • As a cavity wall construction full building envelope wrap membrane.
  • As a vapor barrier in mechanically fastened roofing systems.
  • Sealing window and door perimeters to the building substrates.
  • Sealing around skylights.
  • Sealing joints in exterior gypsum board.
  • Sealing penetrations in roof and wall systems.
  • Sealing joints in outsulation systems.


SafSeal Butyl 40 mil Documents


SafSeal Butyl 40 mil Specifications

Shipping & Returns

Sunshine Supply prides itself on providing only the best waterproofing products to the construction industry. Unfortunately, products we offer may not always meet our customers expectations. If this is the case, we are happy to accept your return and help you find a product that better fits your needs. (see return policy below)

If the reason for your return is a result of a mistake made by Sunshine Supply, we will provide a full product refund along with all tax, shipping, and handling fees applicable to your sale. Return shipping, if necessary, will be processed and scheduled by Sunshine Supply. Please, do not send back your products without consulting a customer service representative first to ensure a quick and easy refund.

Please inform Sunshine Supply immediately if any of your items are missing or damaged upon arrival. Make sure to notate all damages on the shipping receiver from our carriers or Sunshine Supply’s packing slip.

In the event we are unable to accept return of a product due to damage or leaking material. Sunshine Supply will provide a full refund, assuming it meets eligibility of our return policy, but expect the customer to dispose of the materials following all Southern California disposal guidelines.

Returns are fast and easy, but we do have a couple exceptions for products to be eligible for return. The exceptions are as follows:

  • The original purchase date must be 30 days or less. Returns may be subject, but not limited to, a 20% restock fee if the return is made after 30 days. Returns older than 60 days will not be accepted.
  • The product is in original, unopened manufactures packaging.
  • The product is not expired or close to its expiration date.
  • If applicable, product lot/batch number is clearly visible and matching the original sale lot/batch number.
  • Not all returns are the same and it is difficult to outline every instance that meets return eligibility. If your return does not meet the requirements above please give us a call and we will attempt to remedy the situation in some other way. The satisfaction of our customers is Sunshine Supply’s top concern.

Here is some legal jargon from our Terms and Conditions:


Sunshine Supply Co., Inc. is under no obligation to accept return of products purchased by customer whether or not they are special order. Sunshine Supply Co., Inc. may, in its sole discretion, accept a return of products and provide a credit to the customer’s account if (I) the products were purchased from Sunshine Supply Co., Inc., (II) the product is not visibly defective or impaired or have expired expiration dates, (III) the product is returned within thirty (30) days of the date of sale, and (IV) the product is in the original manufacturer’s packaging with Lot/Batch number clearly legible and matching the original sale. If Sunshine Supply Co., Inc. accepts the return of product, a restocking fee of 20% of the purchase price shall be deducted from all credited amounts from all stock, non-stock, or special order product. Additional limitations or costs may be imposed upon their return including those required by the manufacturer of the product.

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