Test Background
Paint and varnish moisture resistance test can determine the exposure performance of coated specimens in a constant condensation water environment or in an alternating condensation water environment.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various paints and varnishes, and provides professional moisture resistance test services for paints and varnishes.
Scope of tests
Color paint is divided into primer and topcoat: primer is divided into primer, putty, mid-coat, sealer, anti-rust paint, etc.; topcoat is divided into enamel paint, special topcoat, etc.
The paint and film of varnish are transparent and are divided into ester varnish, shellac varnish, phenolic varnish, alkyd varnish, acrylic varnish, polyester varnish, high-performance varnish, fluorocarbon varnish, etc.
Test method
1. The condensate water test environment has the following signs: Test environment:
-CH Condensing environment at constant humidity;
-AHT Condensing environment with alternating air temperature and humidity;
-AT condensing environment when air temperature changes alternately.
2. Expose the coating sample to the condensation environment in the test chamber, and then evaluate it according to the standards agreed in advance by the relevant parties. These evaluation standards are usually subjective.
Test standard:
GB/T 13893.2-2019 Paints and varnishes Determination of moisture resistance Part 2: Condensation (exposure in test chamber with heated water tank)
GB/T 13893.1-2019 Paints and varnishes - Determination of moisture resistance - Part 1: Condensation (one-sided exposure)
GB/T 13893.3-2019 Paints and varnishes - Determination of moisture resistance - Part 3: Condensation (exposure in test chamber with heated, bubbling water tank)
ISO 6270-3-2018 Determination of resistance to moisture of paints and varnishes Part 3: Condensation (in-machine exposure with heated foam water reservoir)
NP EN ISO 6270-2001 Varnishes and coatings Measurement of moisture resistance (by continuous concentration)
BS EN ISO 6270-2-2018 Paints and varnishes Determination of resistance to moisture Part 2: Condensation (in storage cabinets containing hot water)
ISO 6270-2:2017 Paints and varnishes Determination of resistance to moisture Part 2: Condensation (cabinet exposure)
ISO 6270-1:1998 Paints and varnishes - Determination of resistance to moisture - Part 1: Continuous condensation
EN ISO 6270-2-2005 Paints and varnishes - Determination of moisture resistance - Part 2: Test method for specimens exposed to condensation water
KS M ISO 6270-2-2011 Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation
DIN EN ISO 6270-1-2002 Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation action
