west system question

S

sliprock

AzB Silver Member
Silver Member
I'm wanting to test drive the 207 hardener to seal a cue. I have an extra pump from a previous purchase. My question is, Does the 207 mix at the same ratio as the 205?
 
The pump kits usually come with one for the resin, one for the 205/206 and one for the 207, so if the extra pump looks like it takes more than the other, it should be the right pump.
 
Tony Zinzola said:
The pump kits usually come with one for the resin, one for the 205/206 and one for the 207, so if the extra pump looks like it takes more than the other, it should be the right pump.
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Forgot about the different pump sizes. A 205/206 pump will not screw on the 207 container. I don't use the pumps since I measure by weight.
 
Murray Tucker said:
Forgot about the different pump sizes. A 205/206 pump will not screw on the 207 container. I don't use the pumps since I measure by weight.
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Shouldn't they be mixed by volume. not weight?
 
JoeyInCali said:
Shouldn't they be mixed by volume. not weight?
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The can has weight mixing info. 205/206 is 5:1 by weight or volume. 207 is 3.5:1 by weight.

Plus it's handy to be able to mix up .175 oz of resin to .05 oz or hardener. You can seal a cue with almost no waste.
 
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JoeyInCali said:
Shouldn't they be mixed by volume. not weight?
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Same as MT... I believe epoxies are better mixed by weight.
One convenience is the ability to mix smaller batches more precise.
Although most epoxies have approx a 10% error ratio in the mixture, I just like to know that I am getting it as close to what the manufacture is requiring for the best set.

Make sure you do your research though as the mixture ratios are going to be different when doing by weight. Most epoxies are distributed by volume but the harder generally is a tad heavier than the base epoxy.


<~~~likes my old triple beam for weighing epoxy...................
 
I am not sure if I got a bad batch of 207 but it seems to have an amber shade to it? The 205 seems to be cleaner. Has anyone used the 205 for sealing?
 
i had some problems with the 2 part finish. i could peal it right off. i let it sit for weeks. didnt buff right and it was very rubbery. i know i mixed it wrong

do you use a postage scale to measure by weight. i use chris hightowers cue coat.

maybe chris can help with this question.

i think its 1:1
 
Canadian cue said:
I am not sure if I got a bad batch of 207 but it seems to have an amber shade to it? The 205 seems to be cleaner. Has anyone used the 205 for sealing?
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It is amber but since it is just filling pores it is not noticeable on the cue. The 207 has UV protection and is designed to be a sealer. The 205 does not.
 
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