# 3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20

Pack: 3M Fire Barrier Moldable Putty Pads MPP+ are hand-formable, ready-to-use firestop material for openings and penetrations in fire-rated assemblies. The listing claims firestop testing up to four hours under specified standards, while the pads' pliability and re-enterable design suit installations that may need later access.

- [Original product page](https://loonieperks.com/product/3m-fire-barrier-moldable-putty-pads-mpp-plus-7-inch-pack-20)
- [View offer](https://loonieperks.com/visit/3m-fire-barrier-moldable-putty-pads-mpp-plus-7-inch-pack-20)
- Market: CA
- Language: en-CA
- Currency: CAD
- Brand: 3M
- Model: 98040055240
- Category: Tools & Garden > Hardware & Building Materials
- Price: 149.24 CAD
- Previous price: 189.98 CAD
- Discount: 21%
- Price checked: 2026-11-14T11:52:59.250Z
- Rating: 4.5 / 5
- Reviews: 168

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- One-part intumescent putty is described as ready to use and re-enterable.
- Designed for fire-rated wall openings and through penetrations, including electrical-box protection.
- Pliable material can be formed by hand without mixing or tools.
- Listing states it provides a draft and cold-smoke seal.

## Pros

- Hand-formable pads can be shaped around openings and penetrations without mixing or installation tools.
- Re-enterable material is described as suitable where later access may be needed.
- The listing specifies firestop testing up to four hours under named standards and wall-opening testing up to two hours under UL 263.

## Specifications

### Identity
- Brand: 3M
### Dimensions and installation
- Dimensions listed: 33.02 x 27.94 x 15.24 cm; 2.7 kg
- Weight listed: 2.7 kg
- Pad size: 7 in x 7 in
- Pad thickness: 1/10” \(2.54 mm\)
- Application: Applied by hand, with no mixing or tools
### Firestop claims
- Firestop testing: Fire stop tested up to 4 hours in accordance with ASTM E 814 \(UL 1479\) & CAN/ULC S115
- Wall-opening protection testing: Wall opening protective material tested up to 2 hours in accordance with UL 263

## Before you buy

- The title specifies a pack of 20, but the product details separately state an item package quantity of 1. Confirm the selected listing's supplied pad count before ordering. The stated fire-resistance durations apply to testing under the cited standards and are not a blanket guarantee for every assembly or installation.

## A good fit for

- Installers protecting listed electrical boxes in fire-rated wall assemblies.
- Firestop work involving cable, conduit, pipe or other through-penetration gaps.
- Buyers who need a moldable material that can be re-entered for later access.

## Less suited to

- Those seeking a general-purpose household sealant rather than material intended for fire-rated assemblies.
- Buyers who need a clearly confirmed package quantity without checking the listing details.

## Customer feedback

Customer feedback reports ease of use and positive impressions of functionality and sound protection, including use for electrical-box soundproofing. These are customer perceptions, distinct from the listing's firestop testing claims. The aggregate ratings lean positive but include lower ratings too, so feedback does not establish suitability for a particular rated assembly.
- Positive themes: Customers describe the material as easy to use and report positive functionality.
- Positive themes: Feedback mentions perceived sound protection, including around electrical boxes.

## Frequently asked questions

### What are these putty pads intended for?
The listing describes them for fire-rated wall openings and through penetrations, including protection around electrical boxes and sealing gaps between cables.
### How are the pads installed?
They are described as ready to use and hand-formable, with no mixing or tools needed.
### What testing does the listing claim?
It states firestop testing up to four hours under ASTM E 814 \(UL 1479\) and CAN/ULC S115, plus wall-opening protective-material testing up to two hours under UL 263. Applicability depends on the tested assembly and installation.
### How many pads are included?
The title says pack of 20, while a separate detail lists an item package quantity of 1. The supplied pad count is therefore unclear from these listing details.

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- [3M CP-25WB+/10.1 10.1 Oz. Fire Barrier Sealant \(Pack of 1\) \| One-Component, Gun-Grade, Latex-Based, Intumescent Material](https://loonieperks.com/visit/3m-fire-barrier-moldable-putty-pads-mpp-plus-7-inch-pack-20)

## Images

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 1](https://loonieperks.com/i/qC_iGamUWmDh7jfLfgYn7GTlO_B-w7B3OYFB-S9ZueAIo3akzXrXaehVM9bIB3OjdzkID95AzU8ikdVavlMYnEA93L18S55zQ1gETHyIW9-YEe0fr-TI.jpg)

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 2](https://loonieperks.com/i/s23oATA12Aob65geTQ4dptSwBK2IrNRamwX4ORqUbctiLsOIPw7a9MA5rbe9dd8nKqfzJLT76qqKKg3Yj9kDgHW5pllNwpiMnOWhGX443ONImYNHfcFR.jpg)

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 3](https://loonieperks.com/i/J2cX5tOzVo1xTO5etYdlXTHwpjQSQSjiaxivJxr5uQLKKVDewEznk9cDidN97VZL31nu2g_Ktav9hzWDk6v1voIX8YD1_WdQt5UKw_4ggXJVV4w6TKZG.jpg)

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 4](https://loonieperks.com/i/-W2jID5GzS1HsTps8VDcurem5anIQgY20iJwXntd0Rn8oCZdJV2LPkVvSq8Tz67cnhC_A74C0uzloss1BMziLHbL530TeDdBrLBgwN3_KfFSR5IAnYi5.jpg)

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 5](https://loonieperks.com/i/XjaTuCN0jkVwwLFiQ9f_4gZ-vZ5ev_SJyDwxyAylJfLto6BNwJgr9Ixhn1_ZMaaC8ojIpl9dRs8wxC_DeHO3lZCdgIR1M0y3BUtaB2TAo46Prp0UoT2b.jpg)

![3M Fire Barrier Moldable Putty Pads MPP+, 7 in x 7 in, Pack of 20 — 6](https://loonieperks.com/i/EYakVnNwt4GWacEv5Rfy947WGxY1OqDP9PwLAX8bII7HcG_VPlvxWzo1UmrXl06O-wyEQ52DrwJZ-ur60IG3rfwk3ZmAr4lZ40Wsjyv3JnZtcM9fhhUi.jpg)