VALFLON PLP sheet is a high density sheet for lining that has been produced by giving adhesiveness to a denaturized type of PTFE resin (denaturized PTFE) by a chemical etching method that does not change the relative weight.
(a) Features of the PLP sheet
Chemical resistance properties: Just as in PTFE, there is no corrosion, dissolution, swelling or degradation with respect to chemical drugs or solvents.
Permeation resistance properties: It is of high density at a relative weight of 2.20. The permeation of drug solution and gas is extremely little.
Surface smoothness: There is an excellent surface smoothness unique to denaturized PTFE.
Weldability: There are superior fusogenic properties with welding rod materials (PFA) unique to denaturized PTFE as well as excellent weldability.
Workability: Deformation processing is easy due to the lack of glass cloth lamination. Also, it adapts well with a can body such as the panel board, manhole flare part and the like, and there is little occurrence of scratches to the sheet surface when lining.
(b) Permeation resistance
(c) Etching (ET) sheet and glass back (GB) sheet
ET: Chemical surface modification by etching process liquid.
GB: Melting and fusing + Melting and embedding by heat treatment.
Because it is heated beyond melting point during the fusion processing of the glass back and later undergoes rapid cooling treatment, the relative sheet weight of the heated part is reduced.
When the relative weight is reduced, the amount of permeation rapidly increases and thereby significantly impacts the tank life. The following diagram is a cross-section of the lining sheet. In terms of the GB sheet, the relative weight of the wall thickness in approximately half of the GB side has been reduced.
VALFLON Lining Tank is only offered to overseas customers.