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DELAMINATION TEST - GB/T 17656-2008 and GB/T 17657-1999 (adapted)

1. TOOLS
1.1 Constant temperature water tank
1.2 Equipment for drying wood, temperature range of 40~200 ° C, with a +/-1 ° C tolerance
1.3 A steel ruler accurate to 1 mm

2. SAMPLING
We cut three 400x400 mm mother samples from 1 sheet


We then cut two 75x75 mm final samples from each 400x400 mm mother sample and get six 75x75 mm final samples for testing


3. TESTING PROCEDURE

TYPE I. Moisture and water proof panels suitable for external conditions
① Inmerse samples in 100 degrees water for 4 hours
② Dry samples at 63+/-3 degrees for 20 hours
③ Inmerse samples in 100 degrees water for 4 hours
④ Dry samples at 63+/-3 degrees for 3 hours

TYPE II. Moisture proof panels partially suitable for external conditions
① Inmerse samples in 63+/-3 degrees water for 3 hours
② Dry samples at 63+/-3 degrees for 3 hours

TYPE III. Panels suitable for dry conditions (not moisture proof)
① Inmerse samples in 30+/-3 degrees water for 2 hours
② Dry samples at 63+/-3 degrees for 3 hours

         

4. ASSESSING TEST RESULTS

The sample’s film and substrate delaminated 25 mm

 

 
 
  
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