Adhesion (lat. adhaesio – stiction) is the tendency of certain dissimilar molecules to cling together due to attractive forces like lacquer coating sticks to steal, glue sticks to plastic and others.
Block copolymer is a linear copolymer in which identical mer units are clustered in blocks along the molecular chain.
Vulcanizationrefers to a specific curing process of rubber involving high heat and the addition of sulfur or other equivalent curatives in which polymer molecules are linked to other polymer molecules by atomic bridges composed of sulfur atoms or carbon to carbon bonds.
Compound is a combination of thermoplastic polymer matrix and elastomers with or without fillers.
PVCis modified polyvinylchloride. On the one hand it’s cheaper than other materials, rounding radius is shorter, the material is unflammable, may be of different color. On the other hand it becomes hard in low temperatures and too soft in high temperatures. It has low elasticity, UV resistance, mechanical strength, stability to atmospheric agents, tough welding angels and it’s difficult to change.
Polymersare complex compounds made of many joined monomers.
Rubber(lat. resina) is a polymeric compound. Rubber is elastic material produced by vulcanization. It’s used to produce tyres, seals, hoses, conveyer belts, patient care items and personal-care products.
EPDM rubberis an elastic material produced by vulcanization based on Ethylene Propylene Diene Elastomer.
Coextrusionis cross section of a plastic extruder to show the screw. Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Different parts of seals are of different colors. http://standart-prof.ru/katalog/plastikovye-okna/item/156-uplotnitel-dlya-grain-1
Thermoplastic elastomersmelt when heated repeatedly.
TPE-Sis one of the latest world developments. It combines rubber and thermoplastic properties. Styrene Ethylene Butylene Styrene block-copolymer is used instead of rubber. It needs physical cure so it’s ecologically friendly, may contact foodstuffs and may be used to produce patient care items.
Seals for window framesare used for fixed window parts (aluminum constructions).
Leaf gasketis used for moving elements of the window.
Window rubbercan’t be seen by a man because it’s inside a double-glazing unit.
Standart-prof produces sealing gaskets for windows and doors made of TPE SEBS have silicone grease that makes it easier to assemble plastic and aluminum constructions.
Note: Standart-prof (Ltd. “BP-Plast”) produces seals of TPE SEBS (TPE-S) in accordance with all union state standards (ГОСТ 30778-2001 “Sealing gaskets for windows and doors made of TPE”) and has its own patent for invention № 2556638, 19.06.2013.