General material information without obligation
Physical and Mechanical Properties
With 1,14-1,56 g/cm³ PVC-soft is a relative heavy (caused of its halogen component [Cl]), amorphous thermoplastic material. Depending on used plasticizers there are soft rubber type mixtures of 40 Shore A (Shore A = unit hardness for soft plastic) to hard rubber mixtures of 98 Shore A. The latter can be placed approximately at the crossover range between LD- to HD-PE. In comparison to soft rubber the oscillation resistance and tendency of creep properties are greater. The high attenuation and the concomitant resilience are suitable for absorbing bumps and vibrations. PVC only absorbs water to a slight extent. Soft PVC is very tough and has a very high stress fracture resistance.
Optical and Chemical Properties
As regards the chemical resistance of soft PVC as against not soft set PVC (PVC= hard PVC) you have to make allowances depending on the type and percentage of the plasticiser(s). While assembly or application moulded parts of soft PVC can only be exposed to such varnished or coated components which don't cause any migration of the plasticiser. Same for present of solvents of the plasticiser. Raw PVC is resistant to benzin, oil, thinned lyes and acids as well as salt solvents of all kinds. PVC is not resistant to organic solvents such as alcohol, ether, ester, ketone, aromatic hydrocarbons, chlorinated hydrocarbons, strong lyes and acids. Moulded parts from natural coloured soft PVC are glassy-transparent made up. The material goes with production a little bit yellow, which is made up a little bit blue. This can be visible at the smaller sides of moulded parts depending on the light refraction. Given correspondingly-designed injection moulding tools soft PVC parts have a very good glossy surface.
Resistance to Weather and Ageing
The resistance of soft PVC to light, weather and ageing is well and can be advanced by suitable colouration. Soot based black colouring results in an excellent UV resistance and reducing of warmness ageing resistance.
Special Uses - Product Ranges
Conductive fillers for discharging power, various additives and stabilisers - Cable grommets, small elastic feet, suction pads, door bumpers, ferrules, plugs, shock damping elements, glass panel bumpers, adhering elements.
Without any mechanical load the permanent operating temperature range is about -25 to max. 80°C depending on the wall thickness of moulded parts and percentage of the plasticiser(s). Harder settings drift the range to higher temperatures. Raw PVC is flame-retardant because of its halogen component (Cl). Percentage and type of plasticiser(s) characterise the burning behaviour and demerged substances.
Physiological Behaviour and Joint
Soft PVC contains plasticisers which can migrate depending on exposed substances. Given contact with foodstuffs specials plasticisers must be used. Soft PVC can be glued together with Polycarbonate (PC)- and THF-based solvent glue, Polyurethane (PUR)- and Polyester dual-component glue, polychlorinated Butadiene and with vinyl polymers.