Seal the Deal with Alpha Q299: The Ultimate Mylar-Backed Butyl Tape for Weatherproofing Mastery
Alpha Systems Q299 Mylar-Poly Backed Butyl Tape delivers reliable weatherproofing and structural support for your RV, with a durable, non-drying compound that resists water, weather, and air intrusion. Easy to install by hand with no special safety requirements, this VOC-free tape is perfect for sealing joints and corners, and it adheres to all non-porous surfaces—even in tough outdoor conditions. Ideal for RVs, marine, HVAC, and metal building applications, it performs in temperatures from -5° to 120°F.---
- Cross-reference Part #: Q299132*3
- HIGH-PERFORMANCE — ALPHA Q299 Mylar-Backed Butyl Tape provides the ideal tape for weatherproofing and structural support when used to seal corner joints.
- EXCELLENT WEATHERPROOFING — This tape boasts a non-drying compound that has excellent resistance to water, weather and air intrusion.
- SAFE AND SOUND — Our butyl tape is 100% VOC free and there are no special safety requirements for installation.
- EASY INSTALL — Installation is easy: just guide the tape into place by hand on one surface and press or roll to activate the adhesive and eliminate wrinkles. Use scissors to cut the tape and you’re off and running.
- DISCLAIMER — Alpha Systems, LLC retains the right to deny liability for any defects or damages to the roof membrane caused by another manufacturer’s products such as sealants, adhesives, tapes, or related products.
When you go to seal corner joints on your RV, look for Alpha Systems, LLC products, now exclusively distributed by Lippert®. ALPHA Q299 Mylar-Backed Butyl Tape is specially designed for flat, even surfaces, especially for corners of RV units with laminated sidewalls. It also works very well for marine, HVAC, and metal building industries. If you need excellent resistance to water, weather, and air, look no further. Best of all, it’s safe. Our butyl tape is 100% VOC free and there are no special safety requirements. Installation is easy: just guide the tape into place by hand on one surface and press or roll to activate the adhesive and eliminate wrinkles. Use scissors to cut the tape and you’re off and running.
- Dimensions: 1/32” X 3" X 90’
- “No edge” finish
- 1.4 mil transparent Mylar facer permanently anchored to 30 mils of butyl adhesive
- Ideally suited to seal the joints of flat, even surfaces, especially the corners of RV units that use laminated sidewalls
- Used in marine, HVAC, and metal building industries
- Excellent resistance to water, weather, and air intrusion
- Adheres well to all non-porous substrates
- 100% solid content and contains zero VOCs
- Applicable in temperatures from -5° to 120°F
- 1-year warranty
| Length (feet) | 90 |
|---|---|
| Width (inches) | 17 |
| Height (inches) | 7 |
| Length (inches) | 17 |
| Warranty (years) | 1 |
| Thickness (inches) | 0.03125 |
| Physical weight (pounds) | 42 |
| Dimensional weight (pounds) | 12.19 |
| Thickness of mylar facer (mils) | 1.4 |
| Thickness of butyl adhesive (mils) | 30 |
| Applicable temperature range maximum (fahrenheit) | 120 |
| Applicable temperature range minimum (fahrenheit) | -5 |
- What are the dimensions of the alpha systems q299 mylar-backed butyl tape? The tape measures 1/32 inch thick, 3 inches wide, and 90 feet long.
- Is the alpha systems q299 tape suitable for outdoor weatherproofing? Yes, it provides excellent resistance to water, weather, and air intrusion, making it ideal for outdoor weatherproofing.
- Can this tape be used on surfaces other than rv laminated sidewalls? Yes, it is also effective for use in marine, HVAC, and metal building industries and adheres well to all non-porous substrates.
- Does the alpha systems q299 tape contain any harmful chemicals or vocs? No, the butyl tape is 100% VOC free and has no special safety requirements for installation.
- What is the temperature range for applying this tape? The tape is applicable in temperatures ranging from -5° to 120°F.
100% Authentic OEM Parts
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.