| Two-component polysulfide sealant quote \ \ the Longsheng two-component polysulfide sealant performance expansion rate divided PJ220 and PJ400 features. 
 Because the case of wet hardened single liquid type, excellent construction. Two water swelling sealing effect can be more reliably play. Concrete, metal, glass paste is very good. 
 Swellable super-sealing plastic sealing material PJ220 and PJ400 as construction excellent sealing material, is the expansion of the water of the critically acclaimed single-liquid type sealant. A hardened into a good recovery rubber elastomer, after immersion in water volume expansion, filling the gap to play the exact sealing effect. As civil engineering, construction engineering waterways peripheral sealing material can play a good performance, use very wide. 
 PJ220 and PJ400 features composite GB: JG/T312-2011 
 Expansion for the determination of water swellable super-sealing plastic sealing material PJ220 and PJ400 water conditions ● after hardening (7 days) soaking in water, determination of its rate of increase of volume. 
 ● the size of the test piece: 40X2X40mm ● Water temperature: 20 ± 5 ° C expansion rate due to the shape of the coating cross-section varies. 
 Use of water swellable super-sealing plastic sealing material PJ220 and PJ400 
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