zinc anode activation paste for concrete and dry environments zap is a paste which is developed specifically for galvanic zinc anodes when applied in dry environments. zap keeps the zinc surface moist and active as it con......zinc anode activation paste for concrete and dry environments zap is a paste which is developed specifically for galvanic zinc anodes when applied in dry environments. zap keeps the zinc surface moist and active as it contains a unique blend of moist-binders and zinc surface activators. it enhances the performance and anode efficiency and guarantees a continuous current density even in dry environments like concrete and arid lands. zap has a sealant-like behaviour, is a high viscous and can be applied with sealant-guns. zap comes in standard 210ml canisters or 600 ml canisters which can be used with standard manual or battery charged sealant guns. special flat nozzles are available upon request.