SILANDE MF882 Silicone Sealant Part B (Curing Agent) for Insulated Glass Units

Model Number: 100100586

SILANDE MF882 Part B is the curing agent component of a two-component silicone sealant system used in combination with Part A. It initiates the curing reaction to form a high-performance silicone elastomer after mixing. It is used as part of a complete sealing system for insulated glass manufacturing, where final properties such as adhesion, elasticity, and weather resistance are achieved only after full curing of the combined system.

Technical details

Product TypeSilicone Sealant Curing Agent (Part B)
BrandSILANDE
ModelMF882 Part B
Component TypeCatalyst / Hardener
SystemTwo-Component Silicone Sealant (A + B)
ApplicationInsulated Glass Secondary Sealing / Curtain Wall Sealing (after mixing with Part A)
FunctionInitiates neutral curing reaction with Part A to form silicone elastomer
Curing SystemNeutral cure (condensation reaction system)
Mixing RatioA:B = 10:1 to 14:1 (typically around 12:1 by weight)
Physical StateHigh-viscosity paste
ColorBlack (standard catalyst component)
Application Time (Pot Life)30–50 minutes (after mixing)
Tack Free Time30–60 minutes (system dependent)
Hardening Time2–5 hours (depends on conditions)
Storage ConditionsDry, cool environment (10°C to 30°C), tightly sealed
Moisture SensitivityHigh (must avoid exposure to air humidity)
Adhesion DevelopmentOnly after full reaction with Part A
Temperature Resistance (Final System)-60°C to +180°C
Packaging19 L pail / industrial drum system
Shelf Life9–12 months (sealed container)
Country of OriginPRC (China)
NoteAll performance properties apply only after full curing with Part A

Description

SILANDE MF882 Part B is the curing agent component of a two-component neutral curing silicone sealant system designed for insulating glass applications. It reacts with Part A to initiate crosslinking and form a high-performance elastic sealant. The system is developed for secondary sealing of insulating glass units and provides excellent adhesion, weather resistance, and durability after full curing. The material is intended for professional IG production lines and must be mixed with Part A before application under controlled conditions.

Spec & Technical Data

SILANDE MF882 Part B functions as the catalyst component in a two-component neutral curing silicone insulating glass sealant system. According to technical datasheet references, it is mixed with Part A in a typical weight ratio of approximately 10:1 to 14:1 depending on processing requirements. The curing agent initiates a neutral condensation reaction that converts the base polymer into a high-performance silicone elastomer with high elasticity and mechanical strength. Once fully cured, the system demonstrates excellent adhesion to glass and aluminum substrates, strong resistance to UV radiation, weathering, and extreme temperatures ranging from -60°C to +180°C. Part B is moisture-sensitive and must be stored in tightly sealed containers to prevent reaction with atmospheric humidity. It is supplied in industrial pails or drum packaging for professional IG manufacturing applications.

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