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Fiberglass Pipe Insulation

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  • Image 1
  • Johns Manville Micro-lok HP Fiberglass Pipe Insulation
  • Image 3
  • Iron Sizing Chart for Pipe Insulation
  • Copper Sizing Chart for Pipe Insulation
  • Fiberglass Pipe Insulation with ASJ Max Jacketing and SSLII Double Adhesive Closure System
  • Fiberglass Pipe Insulation with ASJ Max White Poly Coated Jacketing
Owens Corning / Johns Manville
$3.57
SKU:
0100000
Unit Of Measure:
Per 3ft Section
Condition:
New

 Product Description

Fiberglass Pipe Insulation covering is intended as a thermal insulation for both hot and cold service piping from -20°F to 1000°F.  The pipe insulation is molded from heavy density resin bonded glass fibers that come in 3 foot long hinged sections. The fiberglass is wrapped with white All-Service Jacketing with a self-sealing lap (ASJ/SSL) for a quick and secure installation. Each 3 foot section of pipe insulation comes with a butt-strip tape (matching the white ASJ jacketing) that is used to connect two sections of pipe insulation together. 

Typical Uses Include:

  • Domestic Hot & Cold Water Pipes
  • Hot Water Heating Pipes
  • High Temperature Pipes
  • Dual Temperature Pipes
  • Steam Pipes (Low to High Pressure)
  • Condensate Lines
  • Refrigerated / Chilled Liquid Pipes

Choosing The Correct Size:  There are two sizes you need to choose when ordering, the "Pipe Size" and the "Insulation Thickness".  The insulation thickness is the wall thickness of the fiberglass which varies from 1/2" up to 3" thick. For help selecting a fiberglass pipe insulation thickness see our Fiberglass Thickness Guide  To determine which Pipe Size to order please see the link below (Note: Pipe Size is NOT the same as the pipe diameter):

CLICK HERE FOR PIPE SIZING CHART AND INSTRUCTIONS

Installation Instructions:

To install pipe covering, simply open the hinged part of the pipe insulation and place the opening over the pipe. The fiberglass pipe insulation will self-close around the pipe. Once the fiberglass is fitted snug around the pipe, peel the release paper from the self-sealing lap and press the ASJ/SSL jacket closed from the middle towards the edges of the pipe insulation. Make sure to rub the jacket closed to ensure a secure seal.  Seal two sections together with a piece of butt strip tape making sure to rub the tape to create a secure seal.  Additional ASJ MAX Tape is recommended for large projects and projects that require multiple cuts of the insulation.  Use of PVC Fitting Covers for elbows, tees, unions and other pipe fittings should be installed after installing fiberglass pipe insulation. 

For more information: Fiberglass Pipe Insulation Datasheet

VIDEO: HOW TO INSTALL FIBERGLASS PIPE INSULATION

White ASJ Jacketing:  A large majority of common size pipe insulation we ship is the new ASJ Max / HP ULTRA pipe insulation while some larger sizes and (3 x 1/2, 3-1/8 x 1/2, 4 x 1/2, and 4-1/8 x 1/2) will be Johns Manville Micro-Loc HP.  The new ASJ Max / HP ULTRA jacketing has a poly top-coat over the ASJ paper which makes it easier to wipe clean and slightly water resistant (cannot be left exposed outdoors).

NOTE: Each unit is 3 linear feet of pipe covering. For example, if you need 9 linear feet, you only need to order 3 units.

BUY INSULATION PRODUCTS.COM ONLY SELLS AMERICAN MADE FIBERGLASS PIPE INSULATION PRODUCTS.  DEPENDING ON SHIP TO LOCATION AND/OR PIPE SIZE WE MAY SHIP OWENS CORNING ASJ MAX OR JOHNS MANVILLE MICRO-LOC HP / HP ULTRA INSULATION. PLEASE CONTACT US WITH ANY QUESTIONS.

TIP: We highly recommend ordering a roll of ASJ Max Tape with your order of Fiberglass Pipe Insulation to ensure you have enough tape to completely seal your piping system.  Every cut made between fittings (tees / 90s etc) will result in the need for more tape. ASJ Max Tape also comes in 25'er Short Rolls for smaller projects.

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 Product Videos

Fiberglass Pipe Insulation Installation Instructions
  • Fiberglass Pipe Insulation Installation Instructions
    This is a basic tutorial that covers how to measure your pipe ...

 Product Reviews

Showing reviews 1-10 of 144 | Next

  1. Great Product - Not so great chart

    Posted by Andy from New Hampshire on 10th Dec 2019

    I purchased the 1" thick pipe insulation for my residential steam system. Anecdotally speaking... my basement is now less warm, my living spaces are slightly warmer, and my boiler is firing less to keep the temperature the same. Goals accomplished.

    Tips for any other clueless homeowners, such as myself.:
    -The self-adhesive strip really needs be rubbed on to get it to stay adhered.
    -Try to keep the outer jacket of the insulation dust free (difficult in my crawlspace) as it will help with the self-adhesive strip.
    -You will use more ASJ Max tape than you expect!
    -Use sharp/new razor knives to cut it. Cuts easy!

    It's a great product, and easy to work with, but rated 4 out of 5 because I found the sizing chart confusing. It's difficult to access some of my pipes so I used calipers to measure the OD. Some of my pipes were different sizes from what was listed in the chart so I had to "guess" as to what to order. Lucky for me only 10 pieces were unusable so I ordered a second batch a size up/down from my original order.

    When in doubt... call 888-367-8931


  2. Fiberglass pipe insulation

    Posted by Carl B. on 10th Dec 2019

    The product was excellent, easy to use, high quality, shipped in perfect condition and about 1/3rd. the cost of all the major retailers. Very satisfied.


  3. Best quality

    Posted by Paulina W. on 3rd Dec 2019

    Very surprised with the quality of the product. Super fast delivery and amazing customer service


  4. High quality fiberglass insulation

    Posted by Guoxiang R. on 28th Nov 2019

    The fiberglass pipe insulation is really great product and the price is quite reasonable. The delivery was fast. It is very easy to install. I highly recommend this product.


  5. Good product

    Posted by Thomas P. on 27th Nov 2019

    Website made it easy to determine what size my pipes were and it was delivered next day easy to install and it looks great. I would recommend you guys anytime thanks


  6. Fiberglass pipe insulation.

    Posted by Leonard J. on 27th Nov 2019

    The product seems to be well made and was easy to install.


  7. Just perfect

    Posted by John M. on 25th Nov 2019

    Everything received has been as described.


  8. Easy to install, high quality product

    Posted by Alex T. on 23rd Nov 2019

    Product is easy to install with pre-cut strips of sealing tape and split for easy installation. Good price for insulation value.


  9. Works well

    Posted by Lisa H. on 18th Nov 2019

    We recently removed the asbestos from our heat pipes and thought the abatement company would reinsulate them with Fiberglas. They said they could do it - for $3500 - so we decided to do it ourselves. It was pretty easy because the product is sturdy and works way better than the sample pieces I bought at Home Depot. We’re not quite done and now the weather has turned cold but the house heats up quickly and the new insulation seems to work quite well. It also looks nice and neat and we’re looking forward to finishing up with the pvc covers for the elbows, etc.


  10. Fibreglass pipe insulation

    Posted by Barry S. "Tennessee Steam" on 14th Nov 2019

    45 years ago somebody decided to insulate a few of the more accessible steam supply lines in the basement/boiler room crawlspaces. 1974 newspaper is what was handy I guess. after reading various posts on heating help dot com and watching a couple of Dan Holohans steam videos I knew one of the headline upgrades to make our old house radiators work as originally designed was some of this stuff - mains pipe insulation.

    despite the shipping cost to tennessee it was still much more economical than a local supply house and SO much better a product than big box stores limited offerings. hardest part was finding someone willing/capable of dealing with the narrowest corners of crawlspace to install.

    careful measuring of pipe OD and looking up the chart for nearest rounded down nominal pipe size avoided costly returns. tubes easily fit onto the pipes and secure snuggly with sticky tab that runs the length. large roll of max tape recommended for extra cuts of length, corners, hangers etc. we also double taped the pipe lengths of most difficult access areas, just to be sure I don't have revisit in my lifetime. On a budget, I cheated using pipe wrap on junctions and corners after trying to cut out bevelled joints - the insulation cuts very easily, but not so in very constrained spaces. not great, but ok. perhaps spend the money on the products here to complete the otherwise very clean and professional look of the insulation once the butt joints are taped up.

    ship out and delivery was fast.
    radiators getting steam evenly now

    *Barry, great review. Newspaper was a common pipe insulation back in the day. We see this a lot on older homes when you open the walls up. ~ BIP


Showing reviews 1-10 of 144 | Next

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