Tamco's Urethane Reducers HR1360 HR1370 HR1380 HR1390 Fast Medium Slow Ex Slow
Our HR 1300 series reducers are made with the highest-grade solvents available. While we could buy in large batches to save money we choose to buy in smaller quantities. The reasoning behind this is that it allows better quality control. When la
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seems pretty good.
I got some 1370 with an order of Euro clearcoat. It was weird, I ordered a kit of clear, it was just a liter of clear and a half-liter of hardener, but when it arrived there was five liters of clear and 2 1/2 of hardener. I tried to send it back but customer service said they didn't want to pay shipping and just keep it. It's a lifetime supply of clear for me - I paint bicycles and measure paint mixes by the teaspoon.
Anyway, the 1370 works really well with the clear, i can spray a tacky coat, then thin down a little and the gloss is just, aah glossy! Sweet.
Anyway I decided to switch over to Tamco's sandable epoxy hi-build primer because the PPG KX I was using they don't sell in any sizes under a gallon. I ordered more 1370 so I could thin down the Tamco sandable - haven't used it yet and Tamco doesn't even tell you what to use if you need to thin it down so it will go thru the gun and lay down nice on the work. Painting weather is just about done for the year. Get with me next year and I'll let you know how the 1370 does with the hi-build sandable.
J
jon · September 24, 2026
Packaging needs improvement
Product seems ok however handle failed on one can and the plastic pour spout pulled out on the other. Labeling was not legible on one can.
C
Customer · August 6, 2026
Urethane reducer
With the weather getting warmer I went with a slow reducer and hardened. My finish came out nice!