Larsen Products WCQ06 "Weld Crete" Concrete Bonding Agent, Quart

Great stuff for stucco application over painted or sealed surfaces and has many other uses

This has always been my go to bonder for stucco repair. I appreciate that it is rated to be applied over sound paint. Other brands do not recommend that and state you have to have clean bare cement. Never had a failure in many years.

I've been using the Larsen brand for decades now and it's by far the best concrete/stucco bonding agent on the market. I've used this product over concrete brick as well as existing finish coat plaster for many different exterior projects. Larsen also makes an "interior" bonding agent for gypsum plaster. Make sure you use the Larsen brand for any of your exterior/interior projects!

Easy to apply, hopefully will bond 2 different concrete surfaces.

Replaced a bathroom window and had to repair stucco around the new window. Used this so that when I feathered the stucco cement out to the existing painted stucco surface, it would adhere and also to make sure that the new stucco would adhere well to the cut edges of the existing stucco. It"s important to make sure that the existing painted surfaces are clean and wire brushed and ALL loose and flaking paint is removed. Also need to make sure you have properly installed building paper and tied in new wire lathing into existing lathing. Seems to have worked very well and so far I am pleased. Only time will tell.

Use this product without diluting it works amazingly to hold stucco,R any cement product to bond

The bonding agent is okay, but the cans arrived to me crushed. Lucky they weren't broken and leaky.

Had to patch exterior stucco on FL home. Patch bonded to painted stucco and performed as advertised.