---
product_id: 60930045
title: "SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3\" x 33.3 Yards, Silver, 1 Roll (111163)"
brand: "shurtape"
price: "€ 147.17"
currency: EUR
in_stock: true
category: "Shurtape"
url: https://www.desertcart.hr/products/60930045-sf-686-ul-shurmastic-butyl-foil-indoor-outdoor-hvac-tape
store_origin: HR
region: Croatia
---

# 23.8 PSI tensile strength Withstands -20°F to 200°F 17 mil foil thickness SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163)

**Brand:** shurtape
**Price:** € 147.17
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal like a pro, last like a legend!

## Quick Answers

- **What is this?** SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163) by shurtape
- **How much does it cost?** € 147.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/60930045-sf-686-ul-shurmastic-butyl-foil-indoor-outdoor-hvac-tape)

## Best For

- shurtape enthusiasts

## Why This Product

- Trusted shurtape brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Customizable Finish:** Paintable surface lets you blend professional sealing with sleek aesthetics
- • **Moisture-Proof Seal:** Instant water-resistant grip ensures airtight, mold-free HVAC systems
- • **Unrivaled Durability:** Robust 17 mil aluminum foil resists wear indoors and out
- • **Certified Reliability:** UL 181B-FX Listed with clear printed ID for instant trust
- • **Extreme Temperature Resilience:** Performs flawlessly from freezing -20°F to scorching 200°F

## Overview

Shurtape SF 686 UL ShurMASTIC is a premium butyl foil HVAC tape engineered for airtight, moisture-resistant sealing on metal, flex duct, and vapor barriers. Featuring a tough 17 mil aluminum foil, 23.8 PSI tensile strength, and UL 181B-FX certification, it excels in extreme temperatures from -20°F to 200°F. Its paintable, water-resistant surface makes it the go-to choice for professionals demanding durability and a flawless finish indoors or outdoors.

## Description

ShurMASTIC butyl foil HVAC tape used for airtight and moisture-free sealing of Class 1 Flex Duct, sheet metal and duct wrap vapor barriers, and is also approved for subgrade application on PVC-coated duct. A paintable, UL 181B-FX Listed and printed mastic on a roll for indoor or outdoor use, SF 686 is designed with a butyl rubber adhesive system that can withstand wide temperature variances once applied.

## Features

- Indoor/outdoor mastic foil HVAC tape - 17 mils and 23.8 pounds per square inch tensile strength
- UL 181B-FX Listed - clearly printed on the tape for quick identification
- Linered with service temperature range from -20 to 200 degrees Fahrenheit. Contains no asbestos, CFCs or PCBs
- Instant, water-resistant grip to most surfaces for airtight and moisture-free sealing
- Paintable with paint recommended for aluminum

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M6ZV9BA |
| Adhesive Format | Wide Roll |
| Adhesive Location | Full Surface |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #23,380 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #42 in Butyl Tape |
| Brand | Shurtape |
| Brand Name | Shurtape |
| Color | Silver Printed |
| Compatible Material | Metal, Rubber |
| Customer Reviews | 4.7 out of 5 stars 252 Reviews |
| Foil Thickness | 17 Mils |
| Global Trade Identification Number | 00040074020504 |
| Included Components | HVAC Tape |
| Item Dimensions L x W x Thickness | 3"W x 0.02"Th |
| Item Resistance | water_resistant |
| Item Thickness | 0.02 Inches |
| Item Weight | 2.8 Pounds |
| Manufacturer | Shurtape Technologies |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | 111163 |
| Number of Items | 1 |
| Other Special Features of the Product | Water Resistant |
| Part Number | 111163 |
| Recommended Uses For Product | Indoor, Outdoor |
| Size Name | One Size |
| Special Feature | Water Resistant |
| Surface Recommendation | Metal |
| Tensile Strength | 23.8 Pounds Per Square Inch |
| UPC | 040074020504 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 200 Degrees Fahrenheit |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Shurtape
- **Color:** Silver Printed
- **Material:** Aluminum
- **Number of Items:** 1
- **Recommended Uses For Product:** Indoor, Outdoor

## Images

![SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163) - Image 1](https://m.media-amazon.com/images/I/81GG+wYDwxL.jpg)
![SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163) - Image 2](https://m.media-amazon.com/images/I/91LuC+YfxOL.jpg)
![SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163) - Image 3](https://m.media-amazon.com/images/I/81XRIPb0RmL.jpg)
![SF 686 UL ShurMASTIC Butyl Foil Indoor/Outdoor HVAC Tape, 181B-FX Listed/Printed, 3" x 33.3 Yards, Silver, 1 Roll (111163) - Image 4](https://m.media-amazon.com/images/I/71PmqiygP7L.jpg)

## Questions & Answers

**Q: Is this ul rated for a dryer vent transition duct (the duct connecting from dryer to wall). max temp is 212f?**
A: 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?**
A: 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: does the tape smell?**
A: Mild smell from the adhesive, but most ductwork is not in a living space where smell does not matter.

**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.**
A: 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.

## 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

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**Shop now:** [https://www.desertcart.hr/products/60930045-sf-686-ul-shurmastic-butyl-foil-indoor-outdoor-hvac-tape](https://www.desertcart.hr/products/60930045-sf-686-ul-shurmastic-butyl-foil-indoor-outdoor-hvac-tape)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-25*