epoxy primer mix
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When mixing epoxy primer using grams. Are 83 grams of DP50LV, 114 grams of DP401LV, and 150 grams of DT18xx. for a total of 347 grams, right. The reason I ask is that it seems there is very little grey primer that goes in. The mix is 2:1:1. 2 parts Epoxy primer, 1 part Hardener, and 1 part Reducers. This to make a 1/4 of a pint. Thanks.
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Top Contributor
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Joined: Tue May 19, 2009 7:10 pm Location: OREGON COAST |
ok 4oz is 1/4 of a pint so 2 oz. part A the color 1 oz. of part B then 1 oz of reducer. you can do the change over just ask goggle. 2 oz.= 56.699 grams. just a tip the reducer isn't necessary, but you can use it to tailor the mix to how ever you want it. spray ,brush, dip or what ever. spraying might need reducer, brushing probably wouldn't.
Jay D. they say my name is Jay
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No. These weights are cumulative. So, put your cup and stirrer on the scale and zero. Then put in 83g DP50LV and then add DP401LV until the scale shows 114g, then add DT18xx until the scale reads 150g. Obviously don't zero the scale between products. Chris
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Settled In
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Joined: Wed May 23, 2018 12:19 pm Country: Canada |
NFT5: Thanks for the reply. This was very confusing for me. I now understand how to mix this right. It may seem easy to pros but for people starting out it's confusing. Again many thanks for the reply.
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It's not as confusing if you just use a painters cup.
Less chance of a screw up too. If you don't trust the cup measurements, check for yourself. Take two identical cups and use one to check the other. for example, if you want to check the 4 to 1, fill one cup to a mark and pour it into the other cup 4 times, should equal the mark for 4:1. So much easier. JC.
(It's not custom painting-it's custom sanding) |
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What epoxy uses a 2:1 mix? All the ones I know of is 1:1. JC.
(It's not custom painting-it's custom sanding) |
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Chris
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That is a 4 to 1 mix.
So 4 parts epoxy to 1 part activator First epoxy I've seen like that. JC.
(It's not custom painting-it's custom sanding) |
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Top Contributor
Posts: 6731
Joined: Tue May 19, 2009 7:10 pm Location: OREGON COAST |
I've use Corlar epoxy primer (Dupont) and I think it mixes 3 to 1 then reducer. i'm like JC most epoxys I've been around were 1-1 then reducer. come to think about it I think DP90 IS 2-1 ? I guess it pays to pay attention
Jay D. they say my name is Jay
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100% true. I have another Epoxy that is 3:1:1 and I've used others that are 2:1, 3.5:1 and even 1:1. Moral of the story is what we keep on saying here: "Read and follow the TDS". As an aside, although I do have mixing cups, I rarely use them. Two reasons: 1. They're expensive, especially when you're using maybe 10/day; and, 2. They're not as accurate as scales. I have 2 sets of scales which have accuracies to 0.05g and 0.01g. It is usually possible to get the actual weights of each product and use these, rather than try to estimate whether a level is on the line, below the line or above the line on a mixing cup. Maybe it doesn't matter that much for primers and clears but it certainly does when mixing colours and keeping it as exact as possible satisfies my sense of pedantry. Chris
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