---
product_id: 179798420
title: "Nashua FoilMastic Butyl Rubber Sealant Tape UL 181B-FX listed, (367-17), 2 in. (48mm actual) x 100 ft. (Silver)"
brand: "nashua"
price: "1368 kr"
currency: DKK
in_stock: true
category: "Nashua"
url: https://www.desertcart.dk/products/179798420-nashua-foilmastic-butyl-rubber-sealant-tape-ul-181b-fx-listed
store_origin: DK
region: Denmark
---

# 15 mil butyl rubber adhesive for instant water & air-tight seal UL 181B-FX listed with flame spread < 25 & smoke index < 50 2 mil dead-soft aluminum foil backing Nashua FoilMastic Butyl Rubber Sealant Tape UL 181B-FX listed, (367-17), 2 in. (48mm actual) x 100 ft. (Silver)

**Brand:** nashua
**Price:** 1368 kr
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, seal strong — the pro’s choice for airtight perfection!

## Quick Answers

- **What is this?** Nashua FoilMastic Butyl Rubber Sealant Tape UL 181B-FX listed, (367-17), 2 in. (48mm actual) x 100 ft. (Silver) by nashua
- **How much does it cost?** 1368 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/179798420-nashua-foilmastic-butyl-rubber-sealant-tape-ul-181b-fx-listed)

## Best For

- nashua enthusiasts

## Why This Product

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

## Key Features

- • **Seal Like a Pro:** Aggressive butyl mastic adhesive ensures instant, durable water and air-tight sealing for HVAC and metal repairs.
- • **Conforms Anywhere:** Dead-soft aluminum foil backing molds effortlessly around curves, corners, and odd shapes for seamless application.
- • **Built for Pressure:** Certified to SMACNA standards, performs flawlessly under 0.5 to 10-inch w.g. pressure classes A, B, and C.
- • **Code-Ready & Green:** UL 181B-FX listed and low VOC content supports LEED credits for energy optimization and low emissions.
- • **Heat & Humidity Warrior:** Resistant to moisture, solvents, flame spread, smoke, and high temperatures—built to last in demanding environments.

## Overview

Nashua FoilMastic Butyl Rubber Sealant Tape is a UL 181B-FX listed, 2 mil aluminum foil tape coated with 15 mils of aggressive butyl rubber adhesive. Designed for indoor/outdoor HVAC sealing and metal repairs, it delivers instant water and air-tight seals, meets rigorous SMACNA pressure standards, and resists moisture, flame, and smoke. Its conformable foil backing and low VOC content make it a top-tier, code-compliant solution trusted by professionals.

## Description

Nashua 367-17 FoilMastic Butyl Rubber Sealant Tape is a UL 181B-FX listed 2 mil dead-soft aluminum foil tape coated with 15 mils of butyl rubber mastic adhesive. Used for indoor and outdoor sealing of low, medium, and high pressure HVAC systems including sheet metal and flexible duct systems. Also to seal cracks and seams in gutters, sheet metal roofing and trailers; plus for basic sheet metal repairs.Features & Benefits • Aggressive butyl mastic adhesive- Provides instant water and air-tight seal- Resistant to moisture and solvents- Performs to SMACNA 0.5-inch, 1-inch, 2-inch, 3-inch, 4-inch, 6-inch up to 10-inch w.g. pressure classes and seal classes A, B, and C.- Conformable foil backing: easy to use in tight spaces; conforms easily to round, square or odd-shaped objects.- UL 181B-FX Listed: meets code requirements and can contribute toward requirements for EA Credit 1 (Optimize Energy Performance) under LEED.- Low VOC Content: can contribute toward satisfying EQ Credit 4.1 (Low Emitting Materials) under LEED.- Shows excellent resistance to growth, humidity, flame spread, smoke generation, and the effects of high temperatures. Please note that Nashua 367-17 and Polyken 367-17 are the same product manufactured by Berry Plastics. Therefore the tape roll core may be branded with Nashua or Polyken, depending on current inventory. Country of Origin: United States.

## Features

- Nashua 367-17 FoilMastic Butyl Rubber Sealant Tape is a UL 181B-FX listed 2 mil dead-soft aluminum foil tape coated with 15 mils of butyl rubber mastic adhesive. Nashua 367-17 is used for indoor and outdoor sealing of low, medium, and high-pressure HVAC systems including sheet metal and flexible duct systems. Also to seal cracks and seams in gutters, sheet metal roofing and trailers, and for basic sheet metal repairs.
- This tape has aggressive butyl mastic adhesive, provides instant water and air-tight seal, resistant to moisture and solvents, performs to SMACNA 0.5-inch, 1-inch, 2-inch, 3-inch, 4-inch, 6-inch up to 10-inch w.g. pressure classes and seal classes A, B, and C.
- Nashua 367-17 FoilMastic Butyl Rubber Sealant Tape shows excellent resistance to growth, humidity, flame spread, smoke generation, and the effects of high temperatures. Please note that Nashua 367-17 and Polyken 367-17 are the same product manufactured by Berry Plastics. Therefore the tape roll core may be branded with Nashua or Polyken, depending on current inventory.
- Standards Met: UL 181B-FX Listed; Pressure testing by SMACNA Testing & Research Institute. Carrier/Backing: 2 mil aluminum foil - printed. Adhesive: butyl rubber. Release Liner: low-density polyethylene (LDPE) film. Thickness: 17 mils (carrier, adhesive) 15 mils (adhesive) 2 mils (carrier).
- Adhesion: 90 ounces per inch (to stainless steel test panel). Adhesion to Backing: 40 ounces per inch. Tensile Strength: 23 pounds per inch (longitudinal). Service/Operating Temperature: 40F to 200F. Flame Spread Index: < 25. Smoke Development Index: < 50. VOC Content: < 1 g/L. Core: 3-inch diameter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MUS86ZE |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Silver |
| Date First Available | 17 Nov. 2018 |
| Item Package Quantity | 1 |
| Item Weight | 976 g |
| Item model number | 952113 |
| Manufacturer | Nashua |
| Material | 2 mil aluminum foil - printed |
| Measurement System | Imperial, Metric |
| Part number | 952113 |
| Product Dimensions | 15.88 x 15.88 x 4.8 cm; 976 g |
| Size | 2 in. x 100 ft. (48mm x 30.5m) |

## Product Details

- **Brand:** Nashua
- **Colour:** Silver
- **Material:** 2 mil aluminum foil - printed
- **Number of items:** 1
- **Surface recommendation:** Glass

## Images

![Nashua FoilMastic Butyl Rubber Sealant Tape UL 181B-FX listed, (367-17), 2 in. (48mm actual) x 100 ft. (Silver) - Image 1](https://m.media-amazon.com/images/I/714EqVVeUXL.jpg)
![Nashua FoilMastic Butyl Rubber Sealant Tape UL 181B-FX listed, (367-17), 2 in. (48mm actual) x 100 ft. (Silver) - Image 2](https://m.media-amazon.com/images/I/31mcPoj6EYL.jpg)

## Frequently Bought Together

- TYCO ADHESIVES 952113 Foil Mastic Tape 2" X 33 Yd.
- Nashua FoilMastic Butyl Rubber Sealant Tape [UL 181B-FX listed] (367-17): 3 in. (72mm actual) x 100 ft. (Silver)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-09*