Mild smell from the adhesive, but most ductwork is not in a living space where smell does not matter.

Shurtape SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163)

Shurtape SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163)

Q: Is this ul rated for a dryer vent transition duct (the duct connecting from dryer to wall). max temp is 212f?

Don't know about dryer duct. Is made for HVAC ductwork. May not carry the amount of heat your asking about. Does stand up to long periods of heat and a/c if under the house or in the attic.

Q: How thick is the foil?

It's not just foil. It's attached to another material that makes it fairly thick. You can't tear it with your bare hands - it has to be cut. The Amazon description might give you more information.

Q: Want to use this tape to seal insulation around rv. Is this tape safe for the rv? Don’t want to damage the outside walls.

I used it in my RV to seal air conditioning duct work and it works perfectly for that purpose. It is very sticky and sticks like crazy wherever you put it. It is not meant to be removed but it sounds like you are putting it to a good use. It is approved for use in a house so I assume it is safe for an RV.

4.6/5

Product ID: 164370389

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Details

Brand
Shurtape
Colour
Silver Printed
Material
Aluminium
Number of items
1
Recommended uses for product
Outdoor Indoor

💪23.8 PSI tensile strength for tough adhesion

📏17 mil thickness for durable sealing

🔥-20°F to 200°F service temperature range

Frequently Bought Together

Shurtape SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163)

Shurtape DC 181 UL 181B-FX Listed/Printed Film Tape, 48mm x 110m, Metalized Print, 1 Roll (164686)

Red Devil 0841DX F-Seal 181 Duct Seal, Fiber Reinforced Water Based Duct Sealant, 1 Gallon, Gray, Made in USA

Description

🛠️ Seal with confidence, perform with power!

UNMATCHED DURABILITY - 17 mil thick foil tape engineered to withstand harsh indoor and outdoor HVAC conditions.
CERTIFIED RELIABILITY - UL 181B-FX Listed with clear printed labeling for instant verification and peace of mind.
EFFORTLESS IDENTIFICATION - Printed tape markings speed up inspections and installations, keeping your projects on schedule.
EXTREME TEMPERATURE RESILIENCE - Performs flawlessly from freezing -20°F to scorching 200°F, ensuring year-round HVAC protection.
SEAMLESS AESTHETIC INTEGRATION - Paintable surface compatible with aluminum paints for a sleek, professional finish.

Shurtape SF 686 UL ShurMASTIC is a premium 3" x 33.3-yard butyl foil HVAC tape featuring 17 mil thickness and 23.8 PSI tensile strength. UL 181B-FX listed and printed for quick ID, it withstands temperatures from -20°F to 200°F and is paintable for a polished look—ideal for professional-grade indoor and outdoor HVAC sealing.

Specifications

Manufacturer	Shurtape Technologies
Part Number	111163
Product Dimensions	16 x 16 x 7.62 cm; 1.28 kg
Item model number	111163
Colour	Silver Printed
Material	Aluminium
Thickness	17 Mils
Item Package Quantity	1
Measurement System	Imperial
Special Features	Printed
Batteries included?	No
Batteries Required?	No
Item Weight	1.28 kg

Have a Question? See What Others Asked

Is this ul rated for a dryer vent transition duct (the duct connecting from dryer to wall). max temp is 212f?

How thick is the foil?

does the tape smell?

Want to use this tape to seal insulation around rv. Is this tape safe for the rv? Don’t want to damage the outside walls.

Common Questions

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Shurtape SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163)

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions