---
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: "€ 162.02"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/179798420-nashua-foilmastic-butyl-rubber-sealant-tape-ul-181b-fx-listed
store_origin: IT
region: Italy
---

# UL 181B-FX listed with flame spread < 25 Operates from 40°F to 200°F reliably 15 mil butyl adhesive for instant airtight seal Nashua FoilMastic Butyl Rubber Sealant Tape [UL 181B-FX Listed] (367-17): 2 in. (48mm Actual) x 100 ft. (Silver)

**Brand:** nashua
**Price:** € 162.02
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal like a pro, perform like a boss!

## 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?** € 162.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/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

- • **Unmatched Seal Power:** Aggressive butyl rubber adhesive ensures instant, water- and air-tight sealing for HVAC and metal repairs.
- • **Versatile Application:** Perfect for indoor/outdoor use on ducts, gutters, roofing, trailers, and sheet metal—your all-in-one sealing solution.
- • **Heat & Flame Resistant:** Withstands temperatures up to 200°F with low flame spread and smoke generation—built for demanding environments.
- • **Long-Lasting & Reliable:** 2 mil aluminum foil carrier with 17 mil total thickness delivers strength and flexibility for professional-grade repairs.
- • **Certified Safety & Durability:** UL 181B-FX listing and SMACNA pressure-tested for trusted performance under high-pressure HVAC conditions.

## Overview

Nashua FoilMastic Butyl Rubber Sealant Tape is a premium 2-inch by 100-foot aluminum foil tape coated with 15 mils of butyl rubber adhesive. UL 181B-FX listed and SMACNA pressure-tested, it provides instant, durable, and airtight seals for HVAC systems and metal repairs. Resistant to moisture, solvents, heat (40°F-200°F), flame, and smoke, this tape is engineered for professional-grade indoor and outdoor sealing applications.

## 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 |
|---------------|-------|
| Manufacturer | Nashua |
| Part Number | 952113 |
| Product Dimensions | 15.88 x 15.88 x 4.8 cm; 453.59 g |
| Item model number | 952113 |
| Size | 2 in. x 100 ft. (48mm x 30.5m) |
| Colour | Silver |
| Material | 2 mil aluminum foil - printed |
| Installation method | Self-Adhesive |
| Item Package Quantity | 1 |
| Temperature Range | 40-200 Degrees Fahrenheit |
| Measurement System | Metric, Imperial |
| Accessory connection type | PSA |
| Certification | Pressure testing validated by SMACNA Testing & Re, UL 181B-FX Listed |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 454 g |

## Product Details

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

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-01-30*