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  • Good for Exterior only
  • October 27, 2015
  • Recommended Product

Follow these rules. (1) For outdoor use only (2) Wear rubber gloves when applying (3) Wait several days before painting. This is very good sealant for exterior siding, door and window frame applications. It takes several hours to cure fully and may still be tacky after 24 hours. Per the instructions: (Full cure may take 7 - 14 days or longer) If you're in a hurry this isn't the best stuff to use. It has a strong odor and should not be used for interior applications. That's the first thing in the small printed instructions. (Not for interior use in occupied structures). It's very difficult to remove from your hands and tools. The instructions say (for skin contact wash thoroughly with soap and water) but I found it takes mineral spirits to remove this stuff. The best bet is to wear rubber gloves when applying and avoid touching this or getting it on cloths or tools as much as possible.

  • DIY

IDIMS

14 out of 15 people found this helpful
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By: IDIMS
  • We used OSI on the exterior of our house because they make color matched products for James Hard...
  • April 17, 2017

We used OSI on the exterior of our house because they make color matched products for James Hardie stucco panels. We built our house five years ago. We needed to re-caulk between all the exterior panels just two years after the house was completed and we are now facing this again. I emailed OSI twice (I was not asking for money back, just advice how to get longer life out of their product) but they have not even acknowledged my question yet. They claim their caulk lasts twenty years? Not even close... it cracks after two to three years.

  • DIY

Hays

4 out of 5 people found this helpful
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By: Hays
  • Works awesome! After caulking use regular WD-40 spray to allow...
  • July 24, 2018

Works awesome! After caulking use regular WD-40 spray to allow finger smoothing.

MrCrown

3 out of 4 people found this helpful
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By: MrCrown
  • This product sucks, I should have tread the cure time. Now I'm stuck waiting 7 to 14 days for it ...
  • May 08, 2018

This product sucks, I should have tread the cure time. Now I'm stuck waiting 7 to 14 days for it to cure

  • Pro

1southernman

45 to 54, Male
2 out of 3 people found this helpful
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By: 1southernman
  • OSI is magic....I've been using it for 20 years...most guys use the cheap water based crap.....OS...
  • July 17, 2018
  • Verified Purchase & Recommended Product

OSI is magic....I've been using it for 20 years...most guys use the cheap water based crap.....OSI levels itself out beautifully and lasts for ever.....I love it.....send me a couple of cases...lol

Video & Photo

Windowman

3 out of 5 people found this helpful
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By: Windowman
  • Very thick, almost dry consistency
  • November 26, 2015

Is this stuff supposed to appear as if it's already setting once it comes out of the tube? I had to squeeze the caulk gun with both hands and it took me 10 minutes to go 8 feet. I was a painter for 10 years, so I'm no newbie to caulking. I bought a couple tubes from different stores with the same result.

Cons barely comes out using full strength

Mack

3 out of 5 people found this helpful
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By: Mack
  • I’ve been using Quad for years. One of the best...
  • April 17, 2019

I’ve been using Quad for years. One of the best out there

2 out of 4 people found this helpful
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  • THE BEST WINDOW, DOOR, SIDING CAULK MADE
  • December 01, 2011
  • Recommended Product

I HAVE USED MANY DIFFERENT SIDING CAULKS AND THE OSI QUAD IS BY FAR THE BEST I HAVE USED.

LDL112454

Southaven, MS, USA
55 to 64, Male
1 out of 2 people found this helpful
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By: LDL112454
  • worst
  • July 29, 2019
  • Recommended Product

This is the worst caulk I have ever used. It is not possible to smooth it out. Tried sponge and finger neither worked it actually ruined the sponge as it would not rinse. When it gets on your hands it is very hard to get off. I have a top if the line caulk gun and this caulk does not come out smooth. It is thick and chunky. Terrible stuff

bambino

1 out of 2 people found this helpful
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By: bambino
  • Used this to seal around some stained wood. The color is definitely not brown but more grey. As a...
  • December 29, 2016

Used this to seal around some stained wood. The color is definitely not brown but more grey. As a sealant it's great, but the color is not as advertised.

Video & Photo

TS

4 out of 12 people found this helpful
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By: TS