Flux Core Stainless Steel Wire

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FAQ

Motorcycle cover rotten, I want to stick back, to be fixed in the car, twisted screw, what glue can be completely sticky tight? I used 502 with a few days and rot

You can use epoxy tree glue.

Glass glue is not what can stick ah, is the environmental sealant do ,,,

No, glass glue can only be used in glass and smooth metal, other parts are not suitable, and now most of the building materials market is the window does not leak polyurethane sealant, this sealant no matter what parts can be used

In the conservation company has shares, and later to the toll station, now the toll station withdrawal, you can continue to protect the company to work, what can be based on?

Concrete crack treatment, refers to the scientific approach to the repair of concrete cracks in the technology. Concrete cracks generally have three states: static cracks, active cracks, is developing cracks. The choice of concrete crack treatment methods generally to consider the factors: to determine whether the cracks are active or static; repair the main purpose of what? Is to reduce the excessive leakage, so that the cracks at the complete water; whether the need for reinforcement treatment; crack the main reason is what; cracks in the future changes (value and direction) how. - 13 common methods of concrete crack treatment: 1. resin infusion method; 2. surface sealing method; 3. drilling insert method; 4. flexible sealing method; 5. surface additional reinforcement method; 6. grouting method; . Dry insert method; 8. nail method; 9. polymer immersion method (gravity infiltration and vacuum infiltration); 10. Die surface layer and surface treatment method and so on.

Polyurethane sealant

One-component polyurethane sealant is used to fill the gap (holes, joints, joints, etc.) materials, both bonding and sealing two functions. Polyurethane sealant and silicone sealant, polysulfide sealant composition of the current high-grade sealant of the three major varieties.

Chinese adhesives are not core journals

Is the core journals - Journal level: Peking University core journals statistical source journals

Difference between Epoxy Adhesive and Silica Structural Sealant

There is a difference, epoxy curing are generally hard, and silicone rubber is generally soft, the temperature side of the epoxy silicone is not good, but the strength can be said that epoxy is better than silicone rubber, need to use this Two kinds of glue can find me

Will the kind of adhesive soluble in water (preferably powder), melting temperature of about 800 degrees, was neutral or weak alkaline, thank you!

Alginate is slightly soluble in water and insoluble in most organic solvents. It is dissolved in alkaline solution, so that the solution is viscous. Sodium alginate alginate is hygroscopic and the amount of moisture contained in the equilibrium depends on the relative humidity. The dried sodium alginate is stored fairly stable in a well-sealed container at 25 ° C and below. Sodium alginate solution is stable at pH 5 to 9. The degree of polymerization (DP) and the molecular weight are directly related to the viscosity of the sodium alginate solution, and the decrease in viscosity during storage can be used to estimate the degree of sodium alginate de-polymerization. High degree of polymerization of sodium alginate stability is less than the degree of polymerization of sodium alginate. It is reported that sodium alginate can be catalyzed by proton hydrolysis, which depends on time, pH and temperature. The propylene glycol alginate solution is stable at room temperature at pH 3 to 4; when the pH is less than 2 or greater than 6, the viscosity will decrease even at room temperature. The sodium powder is wet with water and the hydration of the particles makes the surface sticky. The particles are then quickly bonded together to form clumps, and the agglomerates are slowly and completely hydrated and dissolved. Alginate is more difficult to dissolve in water if it contains other compounds that compete with alginate for hydration. Water in the sugar, starch or protein will reduce the rate of sodium alginate hydration, mixing time necessary to extend. A monovalent cation (such as NaCl) also has a similar effect at concentrations above 0.5%. The pH of sodium alginate in 1% distilled water was about 7.2....

What happens to concrete cracks in bridge construction?

Paste method This method can be used when the movement is more than one plane, or if excessive movement has exceeded the allowable range of a normal size groove, or when the slot can not be cut. Cover the crack with a flexible sealing tape and only stick the edge of the belt.