Model # 102133

Internet #100318675

Pittsburgh Corning 10.3 oz. Glass Block Sealant (4-Pack)

Discontinued Pittsburgh Corning

10.3 oz. Glass Block Sealant (4-Pack)

  • Great alternative to grout to seal the glass block wall
  • A very good low odor sealant for bonding glass block and spacers
  • Provides an all glass look for glass block window
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Frequently Bought Together

Product Overview

This Pittsburgh Corning Glass Block Sealant (4-Pack) provides a clear, fast-drying seal around glass block. It resists mold, mildew and discoloration for durability and provides flexibility. It is ideal for adhering to most common building materials. When dry it provides a crystal clear surface and helps make your glass block application appear to be all glass.

  • Used to seal the perimeter of a glass block installation
  • Can be used for interior or exterior applications
  • Durable and mildew resistant
  • Ideal for bonding glass to glass or glass to plastic
  • Remains clear and resists discoloration
  • Quick-drying for ease of use
  • Includes 4 tubes

Info & Guides

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Product Depth (in.)
Product Thickness (in.)
11.5 in
Product Width (in.)


Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
Pittsburgh Corning promises to replace any glass block accessories that are found to be defective within five years from date of purchase.

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Customer Questions & Answers

Can this sealant be used between the glass block to adhere each block one to another?

I am planning to use spacers between each block and the glass block wall will be installed above the shower half wall. It will be only 16" h x 40"w using 8" blocks. It will be secured by the bottom wall and one side wall only.
Asked by: Tomcat
Yes This is the use the product is intended for ,and it works well. Allow 24 hours to cure after instlation
Answered by: michael
Date published: 2016-06-08

How many feet per tube of block seaant?

Asked by: Anonymous
I installed a row of 11 blocks (8X8's and 6X8's) with sealant applied top and bottom with one tube using the Provantage system.
Answered by: BlockHead
Date published: 2015-09-20

Glass block sealant clean up

What is the best way to clean up sealant on glass block? What is the best solvent to use?
Asked by: Klyde
Unfortunately, there isn't a solvent that will clean up glass block sealant. The best way to remove it from the blocks is with the edge of a razor blade.
Answered by: PittsburghCorning
Date published: 2016-08-15

I'm building a glass shower half wall. Can this be used to seal the blocks on the outside and grout on the inside?

I don't want white grout lines showing
Asked by: HowieLynn
We recommend that your joints be finished with grout on both sides. Not only will the grout seal your joints better, with a panel that is not attached at all four sides, the grout adds to the integrity of the wall.
Answered by: PittsburghCorning
Date published: 2016-07-12
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Customer Reviews

10.3 oz. Glass Block Sealant (4-Pack) is rated 4.0 out of 5 by 6.
Rated 5 out of 5 by from Wish these could be purchased separately Required purchase of 4 pack added to over cost of project. Only needed 2 tubes for complete installation +other fill in areas.
Date published: 2012-03-06
Rated 5 out of 5 by from works as advertised Went on easily does the job well. I will use this product again
Date published: 2016-03-09
Rated 1 out of 5 by from tubes were unusable- hardened tried to use but all were hardened could not use in a caulking gun
Date published: 2014-05-27
Rated 3 out of 5 by from Sticks 2 out of 6 tubes were unusable due to product setting in the unopened cartridge. I plan on returning the 2 tubes.
Date published: 2013-09-04
Rated 5 out of 5 by from Perfect for the intended application of assembling glass block walls This silicon sealant has a perfect consistency for creating the sealant beads needed for constructing glass block walls. It flows very evenly. Using only a hand operated caulk gun it is possible to generate nice even long sealant bead runs.
Date published: 2016-01-19
Rated 5 out of 5 by from Good Product Very easy to use. A lot better to use this than grout for a very useful wall.
Date published: 2015-03-31
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