Chemical manufacturing | Private labelling | Lancashire | UK | N-Virol N-Virol, private labelling, own labelling, toll manufacturing, filling and packing, contract filling, waterproofing products, DPC Injection Cream, Damp Control, Condensation Products, Basement Waterproofing, cellar tanking, cavity drain membrane N-Virol are a UK based manufacturer of specialist chemical products for the turf care, building, construction and preservation industry where we can offer private labelling, own branding, contract filling, packing and toll manufacturing solutions.