Common Question_Application_Hubei BlueSky New Material INC._Silane crosslinking agent, coupling agent,silane

2023-08-02

Why does RTV-2 silicone sealant have slow thin-layer curing and after-tack?

RTV-2 thin layer curing is a common phenomenon, and there are two main reasons for it
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2023-08-02

How to choose silane coupling agent during the preparation process of silicone sealant?

The choice of silane coupling agent in silicone sealant has a relatively large impact on the performance of the sealant. Acetoxy sealant: acetoxy sealant uses relatively few coupling ag
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2023-08-02

Is it necessary to use MOS and VOS simultaneously?

They dont have to be used at the same time, but they are often used together in actual use. This is mainly because MOS and VOS can play complementary roles in the sealant. Their respecti
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2023-08-02

Why does the oxime transparent sealant have slow internal curing or non-curing phenomenon during low temperature periods?

The main reason for this phenomenon is that the content of base material OH Polymer is low. When the temperature is low, the reactivity of the oxime cross-linking agent is also low. At t
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2023-08-02

Why does white powder appear at the bottom of the drum when mixing oxime cross-linking agents(D-91,D-31) in the low temperature seasons?

TOS is solid at room temperature. Mixed oxime cross-linking agents are all mixed solution products of TOS. When the temperature is low, due to solubility problems, TOS will precipitate i
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2023-08-02

Why does the color of the product gradually deepen during the storage of oxime cross-linking agent?

Mainly because the amino group in the oxime cross-linking agent will gradually turn yellow under the influence of temperature. VOS contains vinyl groups, which will accelerate the yellow
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2023-08-02

Why is the porcelain white alkoxy sealant made by alkoxy cross-linking agent prone to yellowing?

There are three main phenomena of yellowish color of alkoxy porcelain white sealant: 1. The entire bottle/drum of porcelain white sealant turns yellow during storage. The main reason for
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2023-08-02

Why is the storage stability of alkoxy sealant relatively poor?

There are many reasons for the poor storage stability of alkoxy sealant, but there are two main reasons: 1. The methanol produced during the storage of sealant will cause alkoxy end-capp
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2023-08-02

Why do bulges and blisters appear during the application of alkoxy sealant? How to reduce and avoid this phenomenon?

There are two main reasons for the bubbling phenomenon of alkoxy sealant: internal and external. 1. External reasons: caused by application conditions. The main reason is that the temper
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2023-08-02

When acetoxy cross-linking agents are used to make acetoxy sealant, a strong odor is released, and even symptoms of eye smoke may occur.

The main reason for the odor in the production of acetoxy selant is that during the production process, methyltriacetoxysilane reacts with OH Polymer to release a large amount of acetic
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2023-08-02

Why do particals appear in the newly produced acetoxy sealant after being placed for 2-3 days in the low-temperature seasons?

Particles are caused by excessive acetoxy cross-linking agent crystallizing at low temperatures during the production of sealant. Solving this problem mainly starts from two aspects: 1.
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2023-08-02

Why does the crystalization appear in half or the entire drum of acetoxy cross-linking agent at the low-temperature seasons? How to use it correctly?

The crystallization point of the pure acetoxy cross-linking agent methyltriacetoxysilane is 41°C, so the cross-linking agent will crystallize in the low-temperature season. What is more
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2023-08-02

Does acetoxy cross-linking agent occasionally cause floc at the bottom of the drum? What causes this phenomenon?

Acetoxy cross-linking agents have high reactivity. During transportation, storage, and use, the cross-linking agents are partially hydrolyzed and polymerized to produce floc. This floc w
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2023-08-02

Why does the color of acetoxy cross-linking agent appear in light yellow to yellowish? The color of this product on the market varies and fluctuates widely.

The main reason why acetoxy cross-linking agents are colored is that trace amounts of methyltriacetoxysilane decompose during the synthesis process, causing the product to be colored. Si
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Tel：+86-020-38856806
Fax：+86-020-38856809
E-mail：feng@blueskychemical.com

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Tel：+86-0728-3254088
Fax：+86-0728-3253808
E-mail：feng@blueskychemical.com

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Why does RTV-2 silicone sealant have slow thin-layer curing and after-tack?

How to choose silane coupling agent during the preparation process of silicone sealant?

Is it necessary to use MOS and VOS simultaneously?

Why does the oxime transparent sealant have slow internal curing or non-curing phenomenon during low temperature periods?

Why does white powder appear at the bottom of the drum when mixing oxime cross-linking agents(D-91,D-31) in the low temperature seasons?

Why does the color of the product gradually deepen during the storage of oxime cross-linking agent?

Why is the porcelain white alkoxy sealant made by alkoxy cross-linking agent prone to yellowing?

Why is the storage stability of alkoxy sealant relatively poor?

Why do bulges and blisters appear during the application of alkoxy sealant? How to reduce and avoid this phenomenon?

When acetoxy cross-linking agents are used to make acetoxy sealant, a strong odor is released, and even symptoms of eye smoke may occur.

Why do particals appear in the newly produced acetoxy sealant after being placed for 2-3 days in the low-temperature seasons?

Why does the crystalization appear in half or the entire drum of acetoxy cross-linking agent at the low-temperature seasons? How to use it correctly?

Does acetoxy cross-linking agent occasionally cause floc at the bottom of the drum? What causes this phenomenon?

Why does the color of acetoxy cross-linking agent appear in light yellow to yellowish? The color of this product on the market varies and fluctuates widely.