Specification PTFE Gasket Glass Fiber PTFE Gasket,PTFE Seal Gasket ,White PTFE Gasket,Black PTFE Nylon Gasket ZHENJIANG CHUNHUAN SEALING MATERIALS CO.,LTD(GROUP) , http://www.chsealing.com
Products made by titanium dioxide Rutile R218
Decorative coating(Exterior), Coil coatings, Water-based paint, Oil-based paint, General Industrial paints, plastics (PVC, PE, polystyrene and polyurethane), masterbatch, rubber, Water-based printing ink and paper
Main Property
Good whiteness
Good dispersion
Excellent weather resistance ability
High tinting power
Titanium dioxide Rutile R218 Spec
Property R218
TiO2 content %≥ 94.0
Rutile content %≥ 98.0
ColoL*(compared with standard sample)Not lower than
Matter volatile at 105º C %≤ 0.5
Matter soluble in water %≤ 0.5
Residue on sieve 45µ M %≤ 0.1
PH of aqueous suspension6.5-8.5
Brightness %≥ 96
Oil absorption g/100g≤ 21
Tinting strength, Reynolds number ≥ 1800
Apparent density: 2.10~2.30g/cm3
Tensile strength: 15.0Mpa
Ultimate elongation: 150%
PTFE is principally used as a gasket material because of it's capability to remain unaffected by the majority of chemicals used in industry. It is also classified, in most cases, as a food grade material, making it acceptable to both medical and food production industries. There are three basic types of PTFE Gasket materials. Virgin PTFE , filled PTFE and expanded PTFE .Features
Acid and alkali resistant
Chemical resistant
Has minimum friction coefficient of all know pure material
Non-viscous, no aging
Now molds can be made according to customers requirements.
Virgin PTFE is by far the least expensive of the three varieties, and is used in most general applications. Filled PTFE is a gasket material with a virgin PTFE base to which a substance is added during manufacture to improve the sealing characteristics of PTFE . This "filler" usually is glass or graphite particles although ceramics has sometimes been used. The resulting gasket material is strong, yet highly compressible with very good, though not universal, chemical resistance.
Expanded PTFE is virgin PTFE to which a stress resistance has been added by means of molecular rearrangement during manufacture. This process ensures that the molecular chains from which the PTFE is constructed, do not arrange themselves into set patterns. This means that expanded PTFE possesses no structural weakness (grain) and expands and contracts equally in all directions. Because no additives are required, expanded PTFE also possesses the unique chemical resistance of virgin PTFE.
Model NO.: R218
Matter Soluble in Water: 0.5%
Residue on Sieve 45µm: 0.1 %
pH of Aqueous Suspension: 6.5-8.5
Brightness: 96%
Oil Absorption: 21g/100g
Tinting Strength,Reynolds Number: ≥1800
Trademark: Yuejiang
Specification: 25kg/bag
Origin: Shanghai, China
HS Code: 3206111000
Within the rich experience dealing with World TOP 500 companies like BASF, we have the confidence to offer you the most suitable titanium dioxide with excellent service.