Deck Stain

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P.R.A.
Paint Research Associates
Laboratories Incorporated

 

Penetration Test (1):

  1. Devoe-natural wood finish 9507-27mm (excellent) NOW AT 41mm

  2. Chapman-wood guard- 10mm (poor)

  3. Olympic-CWP-15mm (fair)

  4. Thompson's waterseal-15mm (fair)

  5. Thompson's wood protector-15mm (fair)

  6. Flood aquatrol-3mm (very poor)

  7. Flood CWF- 10mm (poor)

Exposure panel rating for 6 months
45° South - Louisville, KY:

Product Water repellency Mildew resistance Color retention General appearance
Unprotected Poor Poor Poor Poor
Devoe Excellent Good/Excellent Good/Excellent Good/Excellent
Chapman Good Poor Poor Poor
Olympic Poor Poor/Fair Poor Poor
Thompson's Poor Poor Poor Poor
Thompson's Poor Fair/Good Poor Poor/Fair
Flood Poor Poor Poor Poor
Flood Poor Poor Poor Poor

(1) Test method: A 235mm x 100mm strip of Whatman #3 filter paper is placed in a shallow dish, which contains the sample to a depth of 5mm. the strip is removed after exactly 1 minute and the distance the sample has absorbed onto the strip measured.

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