0050206993002

Model # FGW3

Internet # 100140762

Store SKU # 657855

Store SO SKU # 755578

3 in. x 150 ft. Fiberglass Weave

$6.98 /each

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Product Overview

The Master Flow 3 in. x 150 ft. Fiberglass Weave is slightly tacky to make for an easier installation. This duct repair fabric provides closure for duct-board boxes and helps patch leaks and holes. To help ensure an airtight seal, it can be used with mastic as code dictates.

  • Fiberglass repair fabric
  • Provides closure for duct-board boxes and helps repair leaks and holes
  • Slightly tacky for an easier installation
  • Attach with staples (not included) to duct board, then apply mastic (not included) as code directs
  • 3 in. x 150 ft.

Info & Guides

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Specifications

Dimensions

Product Depth (in.) 
Product Height (in.) 
Product Size (oz.) 
0.0 
Product Width (in.) 
4 in 

Details

Color 
White 
Full cure (hours) 
Minimum Temperature (F) 
-100.0 
Product Weight (lb.) 
0.5 lb 
Returnable 
90-Day 

Warranty / Certifications

Manufacturer Warranty 
Free from Manufacturer Defect at Time of Delivery 

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Customer Questions & Answers

3 Questions4 Answers

Customer Questions & Answers

3 in. x 150 ft. Fiberglass Weave
3 in. x 150 ft. Fiberglass Weave

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This question is from 3 in. x 150 ft. Fiberglass Weave
 
2 answers

Will this fix a hole in my bath tub and what more will need to buy to go with this

This question is from 3 in. x 150 ft. Fiberglass Weave
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November 6, 2015
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Asked by
clarksville,t.n.
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January 7, 2016
Answer: 
Only if you use a fiberglass resin& hardener
!
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November 9, 2015
Answer: 
Thank you for inquiring about MasterFlow Products ... This item would not be suitable for fiberglass repair. It is not strong enough for this application. Thank you for inquiring about MasterFlow Products.
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This question is from 3 in. x 150 ft. Fiberglass Weave
 
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Could this be used in making a home made cast or no

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June 2, 2016
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Answer (1)

June 6, 2016
Answer: 
Not recommended for cast manufacture. Please call MasterFlow Technical Services at 800-211-9612, M-F 8A-5P EDT with any additional questions.
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This question is from 3 in. x 150 ft. Fiberglass Weave
 
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Can this product be applied to 2 part expanding marine foam to strengthen the overall foam piece?

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May 8, 2016
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Answer (1)

May 11, 2016
Answer: 
No, this item has never been tested to perform under these conditions. Please call Technical Services at 800-211-9612, 8A-5P M-F EDT with assistance on any additional questions.
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Customer Reviews

Rated 4.2 out of 5 by 5 reviewers.
Rated 5.0 out of 5.0 by Good Product This is non-stick fiberglass weave which is different from the Homedepot's product description. It is 3 inches wide. It is proper for HVAC duct gap seal purpose when using mastic. December 15, 2015
Rated 3.0 out of 5.0 by The description is wrong, and this should be in stores. Since the rolls were just wrapped in clear plastic with no labeling, I assume I received the right product. The description says, "Fiberglass Weave is slightly tacky to make for an easier installation." Nope; Not tacky at all. This is just fiberglass mesh with no stickiness whatsoever. The way I installed was to apply a thick layer of mastic to the duct, then lay down the mesh strip, then apply more mastic to fill the mesh and smooth the application. I applied on a dry Spring day, and the thinnest applications dried within a few hours. The thickest applications dried within 36 hours. It seems to have worked. Some tutorials I read online said that their mesh tape could be bent to be applied across a corner, however this mesh strip was too brittle and snapped when bent at a 90 degree angle. This should really be in stores, in the aisle right next to the mastic. Despite having to delay my project for a week while this shipped to store, I'm glad that I was able to get this. I wish the description would have been accurate. April 14, 2015
Rated 3.0 out of 5.0 by Not what I thought.... I bought this thinking it had an adhesive back and was a sealed mesh. Its just Mesh no adhesive at all! You apparently use this in conjunction with mastic and I would also guess it adds some type of tact in order for the mastic to stick to it. I returned it because the UL 181 mastic I bought has no problem sticking to my pipe ducts and flew runs. I have been replacing and repairing and patching leaks in my ducts system and I cant see any application where this mesh will be useful in any way. There are places that sell this with an adhesive back and its also a closed mesh weave not something like this that the air goes right thru. Use this with Mastic and it may offer some use but as for me it was not helpful at all. July 16, 2013
Rated 5.0 out of 5.0 by Easy to handle, easy to use Rolls out easier than most larger cloth fiberglass. The slightly sticky side also makes application somewhat simple. Not so fun dealing with larger size fiberglass mat, the small size makes it easier to deal with. Sort of wish the product could be bought in-store, but they must have some reason to only offer on-line (maybe for the high shipping price). But this works well and seems to be good for the price. I would recommend it for anyone doing some smaller fiberglass application and mat jobs. Still trying to reach the minimum here-shipped fast as well. I guess for the higher shipping price ($10 for 2 rolls) I thought the rolls would be bigger. But no, simply a small box that I am sure didn't cost that much to ship. Seems like a cheaper product, so I assume they make a bit more profit off the shipping as well. Home Depot is a store I like, so I am OK with them making a few bucks off shipping here. March 28, 2013
Rated 5.0 out of 5.0 by This item should be sold in the stores, not mail order Works great on steel ducts. Can use fiberglass drywall tape in a pinch but this is much better. If people knew how easy this project is, they wouldn't waste their time on metal foil tapes that don't last long. The project can be a little messy but the results are well worth the extra effort. Probably the hardest part if you never did this task: finding self-help videos on the web. Old ducts can get dirty so clean the joints with acetone first. I used a spray bottle, wore safety glasses and latex gloves. Precut the weave with about a 2-inch overlap if going around a duct. Apply a thin coat of mastic with a plastic putty knife (about the thickness of a nickel) then lay on a single layer of the fiberglass weave. Add a little more mastic if needed and smooth with a small utility brush or latex covered hands. If the joints are damaged or bent, try to repair that first. Be careful, there may be sharp edges. If jointing wood to metal joints, staple this weave in place first, and then apply the mastic. To find the air leaks, use a burning incense stick and a flashlight. Some joints will blow warm air; others will suck in the smoke. Both are wasting your money. Sealing all the exposed ducts in my 70-year-old home cost less than $100. It's not expensive and works a lot better than using the mastic by itself. This worked fine with 2 different brands of mastic, but don't mix the mastic. It may work if you do, but I don't know. If in an exposed area and you want a neat job, use masking tape to make neat lines but remove it before the mastic dries, basically, right after sealing the joint. The cons: this item should be sold right beside the mastic in the stores, not mail ordered. The mastic can be messy so wear old clothes and have several rags available. December 25, 2012
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