Product Information

Chemical Name: METHYL TRI ACETOXY SILANE

Product Code: D-12

Properties 

D-12 is a low viscosity liquid with a pungent odor, colorless to light yellow transparent liquid. The crystallization point is high, and crystallization begins to occur below 5 ℃.

Technical Data

Note: the above data is for reference only, cannot be as a technical specification. 

Reactivity

D-12 readily hydrolyzes upon contact with moisture.Hydrolyzed with water without catalyst at room temperature. The hydrolysis activity is higher than D-10.

Application

Crosslinker for RTV-1 acetoxy sealant. 

D-12 is the main crosslinking agent for  RTV-1 acetoxy sealant, which can be used alone or mixed with other acyloxy silanes to achieve the required performance and curing rate. The addition amount of D-12 is approximately 3-5%.

D-12 is usually used alone or mixed with other acidic crosslinking agents, which can provide faster curing speed and lower acetic acid release. If mixed with D-12 and D-13, it can achieve lower crystallization point and higher performance RTV-1 acetoxy sealant.

The use process is the same as traditional acidic crosslinking agents. The first step is to mix the polymer and silicone oil for defoaming, followed by the addition of cross-linking agent D-12. After stirring for about 15 minutes, fillers such as gas-phase white carbon black are added, and after dispersion, catalyst D-70 is finally added.

Precautions

The theoretical crystallization point of this product is 5 ℃. During actual storage (sealed and unopened state), crystallization may occur when the ambient temperature is below 5 ℃. Before use, it is necessary to check for any crystallization. If crystallization has occurred, it should not be used directly. It is recommended to bake (not exceeding 80 ℃) before use. The acidic RTV1 produced using this as a crosslinking agent may crystallize below 0 ℃. Please adjust the formula according to the sales area or season.