As a result, this tape seals screw holes and blocks water from reaching the wood. Consequently, it prevents rot and helps decks last 20-30 years longer.
Furthermore, PAC KING makes this tape with pure butyl rubber. Specifically, we offer three widths: 50mm, 75mm, and 100mm. Finally, we ship to 124+ countries with wholesale pricing for distributors.
Butyl Deck Joist Tape
Basically, this self-adhesive tape sticks securely to the top of timber joists, bearers, and ledger boards. Therefore, you must apply it before installing deck boards to ensure lasting moisture protection.
Who Buys This Product?
- First, decking and timber distributors
- Next, building material hardware stores
- Additionally, outdoor construction contractors
- Finally, private label building brands

Technical Specs & Factory Catalog
Indeed, you can download product specs, technical details, and our full tape catalog below. Because these files help with your purchasing decisions, you can easily share them with your team.
Real Photos of Our Products
For example, these are real photos of our finished tape and export packaging. Because we are a direct factory, unlike middlemen, you get better prices and direct quality control.




Key Features
Built to withstand harsh elements
First, our butyl formula handles extreme hot and cold weather. Furthermore, it resists UV damage from the sun. Consequently, it creates a strong waterproof seal that protects your deck frame entirely.
Adapts to any surface shape
Next, the tape bends easily over rough timber and uneven surfaces. Additionally, it sticks firmly to angled ledger boards. Therefore, you get a tight seal on every single part of your deck.
Self-sealing around screws
Moreover, you can drive screws right through the tape. Because the butyl material seals tightly around each screw hole, it stops water from entering without extra sealant work.
Works with treated wood
Finally, our tape bonds well to pressure-treated timber. Also, it sticks directly to chemically treated lumber. In fact, these wood types are common in deck building worldwide.
Product Specifications & Ordering Info
Importantly, this data is for general reference. Additionally, a material safety data sheet (MSDS) is available upon request.
Material Properties
| Adhesive Material | 100% Premium Butyl Rubber |
|---|---|
| Total Thickness | 0.5 mm & 0.7 mm |
| Standard Roll Length | 20 meters |
| Temperature Resistance | -30°C to +80°C |
| Application Surface | Traditional WPC decking framing, treated pine, hardwood, aluminum |
Standard Ordering Sizes
Generally, we use these common slit widths and packaging data for shipping calculations.
| Roll Size | Rolls / Carton | Typical Application |
|---|---|---|
| 50mm x 20m | 24 Rolls | Standard single joists |
| 75mm x 20m | 16 Rolls | Double joists & Repairs |
| 100mm x 20m | 12 Rolls | Bearers & Ledger boards |
Storage & Compliance
Storage & Shelf Life
First, store the tape in its original packaging. Next, keep it in a clean, dry place away from sunlight. Typically, the best storage temperature is 15°C to 25°C. Consequently, under these ideal conditions, the tape works well for 12 months from production.
Material Compliance
Importantly, our butyl tape contains no toxic asphalt fillers. Furthermore, it meets standard rules for heavy metals and VOCs. Indeed, these safety standards are highly common for residential construction materials.
Field Installation Notes
Specifically, our contractor clients commonly report the following application practices in the field:
Packaging, Sizing & Supply
Basically, PAC KING ships tape products from our factory directly to distributors and large contractors.
What We Offer
- Cutting & Sizing: First, we cut tape from large rolls directly in our factory. Thus, we can make 50mm, 75mm, 100mm, or custom widths based on your needs.
- Packaging: Next, we securely pack tape in export-ready cartons. Also, we offer custom printing on the core or carton for wholesale orders.
- Shipping: Additionally, we load and secure pallets for shipping. Indeed, our packaging works perfectly for LCL, FCL, and mixed container shipments.
- Warehousing: Finally, we store all finished products in dry conditions safely before export shipment.
Factory Photos
Below, you will find photos from our production facility. Specifically, these images show our equipment, workspace, and shipping area.



Ordering & Supply FAQ
What is butyl deck joist tape used for?
What is the minimum order quantity (MOQ) for slit rolls?
Do you offer OEM or private label packaging?
How many cartons fit on a standard shipping pallet?
Can we request mixed width cartons in one order?
How long does butyl deck joist tape last?
Can deck joist tape be used on pressure-treated lumber?
What is the lead time for deck joist tape orders?
How does deck joist tape compare to liquid sealants?
Can I get samples before placing a bulk order?
Project Supply & Technical Inquiry
For instance, are you looking for specific tape widths for a project? Or perhaps you want to know pallet pricing for distribution? Either way, contact our factory team today. Simply share your sizing needs and destination port, and we will reply within 24 hours.









