Product Information

SPU Sealant 

The curing mechanism of silicone-modified sealants is to take advantage of the action of water vapor in the air to cause hydrolysis of silanized polymers with a -Si(OR), or -SiR (OR)-structure at the end of the chain and cross-linking them into elastomers with a Si-O-Si mesh structure, thus achieving sealing and adhesive effects.
Silicone-modified polyurethane sealant environmental protection and weatherability
Silicone-modified polyurethane sealant does not contain free isocyanate, does not contain solvents, there is no toxicity in storage and use, the product meets the humidity curing only released a trace of alcohol molecules, fully in line with environmental requirements, and stone, cement, steel and other building materials, non-corrosive. Silicon modified polyurethane molecular chain in the unsaturated bond content is extremely low, has good weathering and aging resistance, resistance to climate change and UV radiation, outdoor use does not need to apply varnish. Outdoor use for several years without surface cracks, cracks or discoloration phenomenon.
Hydrolysis and chemical resistance of silicone-modified polyurethane sealant
Silicone-modified polyurethane molecules contain silicone chain segments, and the main chain is a chemically stable polyether, giving the sealant good resistance to antifreeze, diesel fuel, automotive lubricants and other properties.

Characteristics: Single component, room temperature curing, low VOC, low odor, does not contain isocyanate.
UV resistance, excellent aging resistance, good low-temperature operability.
Use:Automobile and ship weld, caulking sealing, building expansion joint sealing
Packing: 310ml aluminum tube, 400ml/600ml aluminum film.

Company Information

Our company's main export products include

(1) Super Absorbent Polymer

There are two types of industrialized Super Absorbent Polymers: one is hydrophilic polymers attached to starch or cellulose skeleton, such as acrylonitrile grafting polymerization and then hydrolysis of corn starch; the second type is synthetic cross-linked sodium polyacrylate. The former type has high water absorption, low raw material cost, and microbial degradation characteristics. The latter water absorption is low, high cost of raw materials, and not easy to be microbial degradation and corruption, both have been industrialized production.

(2) Polyacrylamide Product

Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. It is a hard, glassy solid at room temperature, with products such as glue, latex and white powder, translucent beads and flakes. Good thermal stability. The viscosity of the solution will decrease after long-term storage due to the slow degradation of the polymer, especially when the storage and transportation conditions are poor. Polyacrylamide is widely used as lubricant, suspending agent, clay stabilizer, oil repellent, water loss reduction agent and thickening agent in drilling, acidizing, fracturing, water plugging, well cementing, and secondary and tertiary oil recovery, and it is a kind of extremely important oilfield chemicals.