---
product_id: 15181171
title: "Rectorseal Metacaulk Firestop Putty Pads 66340, Easy Application, Firestop, 6\"X7\""
brand: "rectorseal"
price: "A$20"
currency: AUD
in_stock: true
reviews_count: 13
category: "Rectorseal"
url: https://www.desertcart.com.au/products/15181171-rectorseal-metacaulk-firestop-putty-pads-66340-easy-application-firestop-6x7
store_origin: AU
region: Australia
---

# STC 60 sound reduction 3-hour fire rating hand-moldable, no curing Rectorseal Metacaulk Firestop Putty Pads 66340, Easy Application, Firestop, 6"X7"

**Brand:** rectorseal
**Price:** A$20
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with firestop finesse!

## Quick Answers

- **What is this?** Rectorseal Metacaulk Firestop Putty Pads 66340, Easy Application, Firestop, 6"X7" by rectorseal
- **How much does it cost?** A$20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/15181171-rectorseal-metacaulk-firestop-putty-pads-66340-easy-application-firestop-6x7)

## Best For

- rectorseal enthusiasts

## Why This Product

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

## Key Features

- • **Fireproof Confidence:** Rated up to 3 hours per ASTM E814 & UL 1479 for ultimate fire containment.
- • **Code-Ready & Reliable:** Meets strict UL and ASTM standards, impressing inspectors every time.
- • **One-and-Done Solution:** Single 1/8" thickness covers 1-2 hour fire rating—streamline your workflow.
- • **Soundproof Your Space:** High STC 60 rating reduces noise transmission for quieter environments.
- • **Effortless Installation:** Moldable, non-curing putty pads apply by hand—no tools or mixing required.

## Overview

Rectorseal Metacaulk Firestop Putty Pads are flexible, hand-moldable pads designed to maintain fire-rated wall integrity around electrical and mechanical penetrations. Rated for up to 3 hours fire resistance and boasting an STC 60 sound transmission rating, these pads require no curing or special skills, expanding when exposed to fire to block flames, smoke, and gases. Trusted by professionals, they ensure code compliance and reduce noise, making them an essential upgrade for modern firestop solutions.

## Description

Product Description Metacaulk Putty Pads are used to maintain the hourly rating of fire-rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8-Inch) is required for a 1 or 2 hour fire rating. Hand moldable with no curing time required. STC rating 60, Tested in a UL 411 wall assembly/section to ASTM E90 From the Manufacturer Metacaulk Putty Pads are used to maintain the hourly rating of fire-rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8-Inch) is required for a 1 or 2 hour fire rating. Hand moldable with no curing time required. STC rating 60, Tested in a UL 411 wall assembly/section to ASTM E90

Review: Excellent product for stopping drafts and firestop - We purchased many of these for air sealing exterior light and power outlets, as well as attic air sealing. The putt molds well around any fixture and has the added bonus of acting as a firestop. The City inspector was most impressed. Also, no toxic smell or off-gassing. Expensive but then it's one and done.
Review: Code perfect. - Product was very pliable, fireproof and appears durable. Fits code for fire stop.

## Features

- Nullify
- APPLICATION: Metacaulk Putty Pads to protect metal electrical cabinets, outlet boxes and mechanical cabinets, to maintain hourly rating of fire-rated walls with electrical outlet boxes and to reduce sound transmission
- EASY INSTALLATION: Moldable non-curing fire-rated material for through penetration firestop systems makes for easy installation; firestop material applied by hand
- SPECIFICATIONS: Rated for up to 3 hours in accordance with the ASTM E 814, UL 1479 and ULC/CAN4-S115-M test standards; firestop pads have sound transmission class (STC) Rating 60; Only one pad thickness (1/8") needed for a 1-2hr. fire rating; no asbestos fillers
- CONVENIENT: No special skills required to apply this firestop sealant; no mixing or additives needed; expands when exposed to fire
- FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008A3UA04 |
| Age Range (Description) | Adult |
| Batteries Required? | No |
| Best Sellers Rank | #49,877 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #179 in Wall Surface Repair Products |
| Brand | Rectorseal |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (156) |
| Date First Available | April 26, 2012 |
| Fabric Type | Nullify |
| Fill Material | Common building material |
| Global Trade Identification Number | 00021449663403 |
| Included Components | Putty Pad |
| Item Firmness Description | Non- Curing |
| Item Package Quantity | 1 |
| Item Weight | 5.3 ounces |
| Item model number | 66340 |
| Manufacturer | Rectorseal |
| Material | Use Metacaulk Putty Pads to protect metal electrical cabinets, outlet boxes and mechanical cabinets, to maintain hourly rating of fire-rated walls with electrical outlet boxes & to reduce sound transmission, Do not expose to water. |
| Material Feature | Metal or non-metallic Outlet Boxes, Flexible and Moldable |
| Material Type Free | Free- Forming |
| Model Name | Metacaulk Putty Pads |
| Number of Pieces | 1 |
| Part Number | 66340 |
| Pattern | Solid |
| Product Care Instructions | Do Not expose to water |
| Product Dimensions | 0.13"L x 7"W |
| Recommended Uses For Product | Metal or non-metallic Outlet Boxes |
| Shape | Square |
| Size | 6"x 7" Pad |
| Special Feature | Flexible |
| Special Features | Flexible |
| Specific Uses For Product | Prevents spread of flames/smoke/gas/water through penetrations. |
| UPC | 021449663403 |
| Unit Count | 1.0 Count |
| Use for | Hands |

## Product Details

- **Brand:** Rectorseal
- **Color:** White
- **Fill Material:** Common building material
- **Size:** 6"x 7" Pad
- **Special Feature:** Flexible

## Images

![Rectorseal Metacaulk Firestop Putty Pads 66340, Easy Application, Firestop, 6"X7" - Image 1](https://m.media-amazon.com/images/I/81kx34p8zvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product for stopping drafts and firestop
*by E***E on May 9, 2025*

We purchased many of these for air sealing exterior light and power outlets, as well as attic air sealing. The putt molds well around any fixture and has the added bonus of acting as a firestop. The City inspector was most impressed. Also, no toxic smell or off-gassing. Expensive but then it's one and done.

### ⭐⭐⭐⭐⭐ Code perfect.
*by K***. on February 11, 2026*

Product was very pliable, fireproof and appears durable. Fits code for fire stop.

### ⭐⭐⭐⭐⭐ Excellet product.
*by K***B on February 14, 2026*

Simple to use-could my be any easier.

## Frequently Bought Together

- Rectorseal 66340 Metacaulk Putty, 6"x 7" Pad, Red
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-11*