Block grout

[apm]

What is everyone's opinion on which is the best block grout ? I have been using 1 brand lately as it mixes easy and pours well , sets very fast , especially in summer , but of late a few engines have come back for service work and the grout is eroding really bad , couple of customers saying they end up with lots of the grout in the radiator ?
Thanks

[mag2555]

Mix the grout with fiberglass resin then let the block sit for atleast 3 days with room temps above 60.
I use to use resin and Aluminum shavings that I got from a General machine shop that use to be one town over from me and that worked flawlessly!

[SupStk]

Master Builder non-shrink grout. No cracks or erosion that I've observed.

[Walter R. Malik]

There are 3 that I use depending upon where I get it. Use the coldest water available.

Euclid NS... hi-flow metallic grout, Hi-Tolerance, non-shrink

Embeco 636 ... non-shrink, metallic Aggregate grout by Master Builders - (more difficult to find).
Embeco 885 ... hi-precision, non-shrink, metalic/quartz aggregate grout by Master Builders - (pours easy but costs more).
Embeco and MasterFlow are the same thing in different bags.

Never had an issue with any of those.

[dwilliams]

then let the block sit for atleast 3 days with room temps above 60.

I once filled a block (well, one bank) with Moroso's grout near the end of the workday. I turned the heat off when I left. In the morning I turned the heat back on, turned the block to stand up the other bank, and filled my shoes with liquid grout.

I would have thought it would have at least set up *some* overnight, but apparently it was very temperature-sensitive.

I used some sheet metal and a Mr. Heater to keep the block warm after that...

[Krooser]

Master Builder non-shrink grout. No cracks or erosion that I've observed.

Which product? They list many....

[SupStk]

Master Builder non-shrink grout. No cracks or erosion that I've observed.

Which product? They list many....

885

Walter, I was told the Embeco line has been discontinued, it’s all Masterflow now.

[Kevin Johnson]

https://pdfs.semanticscholar.org/aee2/0 ... f08f13.pdf

For such a small quantity of mix I hope people are using distilled water, otherwise this is probably why the grout is disintegrating in service. Don't trust public water supplies and certainly not well water.

[Krooser]

Master Builder non-shrink grout. No cracks or erosion that I've observed.

Which product? They list many....

885

Walter, I was told the Embeco line has been discontinued, it’s all Masterflow now.

Thanks.

[fdicrasto]

Non catalyzing machinist grout. Cheap and easy.