Page 1 PCM Peelable Coating Mask PCM is a flexible, solvent resistant latex for masking components, connectors and other items during the conformal coating process. It is also suitable as a spot mask for wave soldering applications. The high film strength of PCM means that it can be peeled by hand without breaking or leaving residues. Flexible latex with high film strength leaves no residue even when removed from complex areas Allows selective coating of circuit boards masks components and connectors during coating application Prevents coating ingress into connectors and components due to the capillary effect Suitable for use with dip, spray or brush applied conformal coatings Approvals RoHS-2 Compliant (2011/65/EU): Yes Liquid Properties Density 20C (g/ml): 1.20 Solids Content: 70-74% Viscosity Brookfield LVT (mPa s): 30,000 to 60,000 Ammonia Content: 0.29% Max pH: 10 - 11 Drying Time (2mm thickness): 2 hours 25C or, 30 mins 60C 2 Cured Properties Tensile Strength: 16.57 MN/m Elongation at Break: 900% 2 Modulus 300%: 0.88 MN/m 2 Modulus 700%: 6.18 MN/m Description Packaging Order Code Shelf Life Peelable Coating Mask 250ml Bottle PCM250ML 6 Months Page 2 Directions for Use Masking should take place between the cleaning and coating process. PCM should be applied to the area being masked to a thickness of at least 1mm to enable easy peeling after coating. Dry at room temperature for at least 2 hours. This can be accelerated by heating to 60C for 30 minutes but some discolouration of copper may occur. Thicker films may require longer drying times. As PCM dries it darkens in colour. PCM must be fully dry before being coated. After spray, dip or brush application with conformal coating the coating should be air-dried in accordance with manufacturer s recommendations before PCM is removed. When the coating is dry, peel off PCM by hand to leave the protected area or component clean and free from coating. The conformal coating may then be heat cured if applicable. Note: This product contains Ammonia. It should be applied and allowed to dry in a well-ventilated area. Store below 30C. Please refer to MSDS for further information. Revision 1: Oct 2013