RodMan;13407 said:
Well you should do well with the Spot/Panel activator. My customer Scott said it looked better and sprayed easier than the HPC15 from S&W. Looked comparable to the DC2000 from PPG (ppg's response to HPC15) The advantage the Euro will have over both in my opinion is film build and durability. I'm going to try to mike out some test panel with each and get a real world dry film comparison. Barry has already suggested to me that at 4:1:1 the Euro could be sprayed at 1 full wet coat on production work and have as much film build as those other clears with two coats. I look forward to confirming that.
Had the chance to do some side by side testing with the new fast activator against the S&W HPC15 and PPG DC 2000 speed clears. Mixed the SPI and S&W 4:1:1 with medium Spies reducer. The PPG was mixed 4:1:1 with their Accelerated Medium reducer. Booth temp was about 83 degrees. Also did two additional SPI mixes with 2 parts reducer and one with Polar Accelerator at 2 oz. per quart.
All three clears were sprayed with one double wet-coat as recommended by their manufacturer’s with same gun within 10 minutes of each other. Pre-measured mill thickness of panels in multiple spots and wrote down measurements. Here are the results:
@ 4:1:1 Dust free Tack free To wetsand Mill Thickness Dry
PPG 4-5 min. 6-8 min. 16-18 min. 1.0-1.5
S&W 5-6 min. 7-8 min. 18-20 min. 2.1-2.3
SPI 7-8 min. 10-12 min. 25-30 min. 3.0-3.5
@ 4:1:2 Dust free Tack free To wetsand Mill Thickness Dry
SPI 6-7 min. 8-10 min. 20-25 min. 1.5-1.7
@ 4:1:2(with 2 oz. Polar) Dust free Tack free To wetsand Mill Thickness Dry
SPI 3-4 min. 5-7 min. 12-15 min. 1.5-1.7
Note the film builds. The PPG was not a misprint - only 1.0 - 1.5 mills dry. The S&W did better but I will note that I sprayed it heavier than normal because the pressure of the gun was about 3 pounds down from when we shot the PPG and SPI. My thanks to Scott @ Classi A/B for helping me today!
11/8/11 UPDATE: Measured panels again today. All three clears came up in measurement now that they are fully dried.
@ 4:1:1
PPG 1.2 - 2.2 mils. dry
S&W 2.3 - 2.5 mils. dry
SPI 3.2 - 3.8 mils. dry
@ 4:1:2
SPI 1.6 - 1.9 mils. dry