瓦克有机硅结构胶、低温快速固化，强度高
SEMICOSIL® 832 A/B Room Temperature Curing Silicone Rubber (RTV-2) SEMICOSIL® 832 UV is specially designed for an assembly glue or side-sealing which requires high adhesion. This is a non-slump silicone adhesive as a 2-component elastomer that is cured by heating conditions with stable adhesion to various substrates with a cohesive failure mode for automotive. This is designed for fast cure processing or wet bonding during processing with fast adhesion built-up at oven processing. Properties • Extremely high adhesion to various substrates such as metals, glass, urethane, primer-treated polycarbonate etc. • High elongation for efficient stress relaxation • Fast curing and adhesion built-up at the minimum energy input (e.g. 60°C/10min) • Thixotropic for non-slump and medium viscosity at the dynamic condition for nozzle dispensability • Waterproof property with low surface energy and hydrophobic structure Specific features • Addition Curing • fast curing at moderate temperatures • Fast curing at room temperature • No chemical shrinkage • Non-slump • Two-component • UV curing SEMICOSIL® 832 A/B | Most recent change: 16.06.2023 1/5Technical data Properties Uncured Property Condition Value Method Color of A+B mixed - Black - Viscosity of mix at 0,5/s 25 °C 600,000 ± 60,000 mPa.s - Viscosity of mix at 25/s 25 °C 50,000 ± 5,000 mPa.s - These figures are only intended as a guide and should not be used in preparing specifications. Properties Uncured Property Condition A B Method Color - Milky translucent Black - Density - 1.0 - 1.2 g/cm³ 1.0 - 1.2 g/cm³ - Viscosity at 25/s 25 °C 50,000 ± 5,000 mPa.s 48,000 ± 5,000 mPa.s - These figures are only intended as a guide and should not be used in preparing specifications. Catalyzed Property Condition Value Method Mix ratio - 1 : 1 A : B Pot Life⁽¹⁾ 25 °C ≥ 20 min DIN EN ISO 3219 T90 at 60°C⁽²⁾ 60 °C ≤ 140 s - 1Time to double viscosity up 2T90 : Time to 90% cure degree up These figures are only intended as a guide and should not be used in preparing specifications. SEMICOSIL® 832 A/B | Most recent change: 16.06.2023 2/5Properties Catalyzed A+B Property Condition Value Method Hardness Shore A - 50 ASTM D 2240 Type A Tensile strength - 7 - 10 MPa - Elongation at break - ≥ 600 % ISO 37 Lap shear strength to Al - ≥ 5 MPa - Lap shear strength to Glass⁽¹⁾ - ≥ 8 MPa - Lap shear strength to Mg - ≥ 5 MPa - 1Cure condition : 60°C/15min (adhesion test : after 1hr cooling at 25°C from cure), T=0.3mm Test speed = 300mm/min These figures are only intended as a guide and should not be used in preparing specifications. All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product s fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties rights. Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request from WACKER subsidiaries or may be downloaded via WACKER web site http://www.wacker.com. Applications • Adhesives • Automotive Electronics • Automotive, Aerospace & Railway • Bonding & Sealing • Displays & Optical Bonding • E-Mobility • Electrics & Electronics • Electronics • Industrial Adhesives Application details • Assembly glue for displays • Side-sealing agent for smart-window applications • Bonding material or sealing agent in electronics, automotive, and other industrial applications
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