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Under catalyzed CV

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Forum topic by CWWoodworking posted 04-04-2020 11:28 PM 270 views 0 times favorited 11 replies Add to Favorites Watch
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CWWoodworking

709 posts in 913 days


04-04-2020 11:28 PM

My theory is my supplier under catalyzed the CV and/or used the wrong catalyst, and the finish is not getting hard. It is Sherwin Williams water white cv. They said they put 3 oz of catalyst. The specs call for 3%. Which is 3.84oz.

Gonna talk to sales rep on Monday, but wanted to get a idea on my options.

The table top is soft maple with a stain.

Thanks.


11 replies so far

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LeeRoyMan

1061 posts in 461 days


#1 posted 04-05-2020 01:24 AM

It’s weird that they would pre catalyze it, I’ve always added the catalyst myself.

Depends on the type of catalyst they used. Some take 10%. See below:

Conversion Varnish 3% Catalyst V66V21
or
10 % Catalyst V66V2005, V66V20006 or V66V20007
or
5% Butyl Acetate R6K18

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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CWWoodworking

709 posts in 913 days


#2 posted 04-05-2020 01:39 AM

I would have rather done it, but he had it done when I got there.

Would the .84oz make that much difference? I’m usually a precat guy.

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LeeRoyMan

1061 posts in 461 days


#3 posted 04-05-2020 01:48 AM

That’s almost an ounce difference, I think it could make a big difference.

I personally don’t know the affects of under catalyzed varnish, but .84 sounds like a lot.
I think it’s a problem.

Edit: Let me know what they tell you, curious to know.

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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CWWoodworking

709 posts in 913 days


#4 posted 04-06-2020 01:47 PM

They think the catalyst was old. Didn’t say much about the .84oz.

I think they are deflecting the and not owning up to it. Spotting me a couple gallons of finish. Like that makes up for a custom table top effed up.

Probably gonna lose my business over this. Luckily I have other suppliers to buy from.

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LeeRoyMan

1061 posts in 461 days


#5 posted 04-06-2020 01:56 PM



They think the catalyst was old. Didn’t say much about the .84oz.

I think they are deflecting the and not owning up to it. Spotting me a couple gallons of finish. Like that makes up for a custom table top effed up.

Probably gonna lose my business over this. Luckily I have other suppliers to buy from.

- CWWoodworking

I’m not sure I’m buying the “old catalyst” story either.
Next time I’m at my SW supplier, I’m going to ask them about it.

I wouldn’t quit using them though, (unless their really just azzholes)
Over the years, I have found that stuff like this just helps form better relationships in the long run.

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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CWWoodworking

709 posts in 913 days


#6 posted 04-06-2020 03:18 PM


They think the catalyst was old. Didn’t say much about the .84oz.

I think they are deflecting the and not owning up to it. Spotting me a couple gallons of finish. Like that makes up for a custom table top effed up.

Probably gonna lose my business over this. Luckily I have other suppliers to buy from.

- CWWoodworking

I m not sure I m buying the “old catalyst” story either.
Next time I m at my SW supplier, I m going to ask them about it.

I wouldn t quit using them though, (unless their really just azzholes)
Over the years, I have found that stuff like this just helps form better relationships in the long run.

- LeeRoyMan

This was kinda the straw that broke the camels back. There is a local company that does nothing but industrial wood coatings with tons more capabilities and knowledge. And there cheaper.

I stuck with SW store cause I’m loyal as an old dog. But it’s time to switch.

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CWWoodworking

709 posts in 913 days


#7 posted 04-06-2020 09:00 PM

So I’m not for sure what is going on but they gave me another gallon, supposedly with the right catalyst and fresh gallon and it’s still not drying.

After I sanded the old stuff off, I re sprayed with new stuff. Been 3 hrs and it’s still soft.

Asked for help and got nothing. I guess my question is can I wait for a day or 2 till it dries, and spray it with something else? I precat or another manufacturers CV?

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LeeRoyMan

1061 posts in 461 days


#8 posted 04-06-2020 09:45 PM

Should be dry, I’ve never had that problem.
All I can think is that they don’t know how to catalyze it properly.

If it dries you should be able to put precat over it, but I’m not positive. I know you can”t put CV over precat.

Next time catalyze it yourself, then at least you know.

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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CWWoodworking

709 posts in 913 days


#9 posted 04-08-2020 01:49 AM

I tried the new precat with catalyst over the SW CV. It lifted the CV and wrinkled the finish. Stripped again and finished with new precat+catalyst. Finally done

This has been a effing nightmare. I guess the silver lining is I found a really good new supplier. And new clear. The new clear sprays and looks better than the SW product I was using. And it’s under 30$ gallon.

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LeeRoyMan

1061 posts in 461 days


#10 posted 04-08-2020 02:24 AM

Bummer….
Did the CV dry? I’m thinking it must not have if the pre cat lifted it, but IDK, maybe it would have anyway.
Some school lessons cost a lot. :(

What other brand did you get?
The only other comparable brand that I have used has been ML Campbell. So, just curious to know.

The last wall unit I posted, I used a color that they (SW) had on file from a job I did before. 5 gallons.
After thinning and spraying it, the color was to dark. They gave me a quart of white oxide tint to try and lighten it, but it still wasn’t enough.
They gave me 5 new gallons of a white they had mixed for another client and said they would make them some more.
That’s pretty good CS, I didn’t have to argue at all. It’s good to have a good rapport.

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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CWWoodworking

709 posts in 913 days


#11 posted 04-08-2020 02:55 AM

The CV was dry after a day. But I don’t know if it was truly dry. It didn’t sand worth a darn.

Chemcraft is the new company. There is a dealer that handles one HUGH account and little guys like me. They will match any color I want, always have stock(a problem at SW store), and have more variety of products.

The new clear is really nice. It can be sprayed without catalyst or with.

With the catalyst they claim durability close to CV. I don’t know if that true or not but a lot of local cabinet companies are using it.

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