In what outside temperature ranges can both the crack filler and water repellent be applied?
By Collin C. - NFI Master Hearth Professional on January 14, 2013
Per the manufacturer, the minimum working temperature for these sealers is 40 degrees. When applied in any colder conditions, the product does not cure properly.
By Rick from Kansas City, Missouri on February 24, 2014
I replaced my back refractory panel and there is a small gap between the bottom panel and the back panel and a small gap between the left panel and the back panel. Probably 1/8 to 3/16 of an inch. Is this normal or does it need to be sealed?
By Collin C. - NFI Master Hearth Professional on February 25, 2014
This gap is indeed normal and is designed to be there for expansion purposes. Early designs where tighter in fit, but manufacturers soon discovered that the panels would bow out and crack from thermal expansion.
SaverSystems Masonry Crack and Joint Sealant - 24604 (
4 out of 5 Stars based on 1 review(s) - sorted by Most Helpful Customer Reviews
November 12, 2016
I would recommend this item to a friend.
Item came on time. Too early to tell if it works. But I can see where the product filled the small cracks in the mason joints.