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BOOTH #1347
Spotlight on Dolphon® and Damival® Polybutadiene Technology
Von Roll, a recognized global leader in electrical insulation and protection and systems, is proud to announce the extension of the Dolphon® and Damival® families as part of its commitment to the automotive and electrical industries. Advancements in polybutadiene potting resins at Von Roll Technology Centers reveal that polybutadiene resins can lower material costs, improved moisture and chemical resistance and provide superior adhesion when compared to silicones. Dolphon® and Damival® resins have also been developed with heightened degrees of thermal conductivity at our Technology Centers in Meyziou, France and Schenectady, NY.
Dolphon® and Damival® products, developed at Von Roll Technology Centers in Meyzieu and Schenectady, offer the highest degrees of thermal conductivity and remain flexible from -50 to 150C. Polybutadiene resins have low exotherm, shrinkage, and pot lives from minutes to hours, allowing application and processing flexibility. The green aspect results in a safe, non-toxic, odor-free work environment.
We offer products which are free of MDI (Methyledediphenol Diisocyanate) and other CMR (Carcinogenic, mutagenic, reprotoxic) substances and are RoHS compliant. Halogen free options are also available.
Lower material cost than silicone, polybutadiene resins can offer a substantial material cost savings. With a broad range of pot life and viscosities available, manufacturers are able to tailor the resins to their applications. With proper selection, materials will result in a safer and non- toxic plant with increased throughput in an odor free environment. Engineers depend on the reliability from corrosion and moisture resistance.
TYPICAL PROPERTIES
Physical
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Part A
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Part B
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Mixed
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Appearance/Color
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Black
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Dark Amber
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Black
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Density @77°F (25°C), Lbs/gal
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9.0 – 9.2
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8.9 –9.2
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9.0 – 9.2
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Viscosity, Brookfield, cps, 77°F (25°C)(RVT/25°C/Sp.3/Rpm 10)
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4,500 – 8,500
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70 - 120
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2,000 – 3,000
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Mix Ratio, by weight or volume with RE 2018-4
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100
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15
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Gel Time @ 77°F(25°C) (120 grams mix)
Gel Time @ 158°F(70°C) (120 grams mix)
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20 - 30 minutes
14 –19 minutes
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Cure time @ 77°F(25°C), initial cure (full cure), Hours
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2 – 4 (24)
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Mechanical
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Linear Shrinkage % (after curing 48 hours at 120°C)
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0.02
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Hardness, Shore “A” (after 24 hours at 77°F/25°C)
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35 - 45
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Coefficient of Linear thermal expansion (ASTM D 3386)
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235 µm/m°C
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Tensile Strength (ISO R 527)
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6-7 MPa
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Elongation at break (ISO R 527)
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200%
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Thermal shock resistance (Oliphant washer test)
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Passes 30 cycles -40°C+155°C
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Low temperature flexibility
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-40°C
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Thermal conductivity
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0.40-0.42 W/m°K
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Glass transition temperature (DSC)
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< -50°C
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Electrical
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Dielectric constant /25°C/50Hz (ASTM D 150)
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3.55
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Dissipation factor /25°C/50Hz (ASTM D 150)
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0.025
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Dielectric strength (ASTM D 149)
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700 volts/ 25 µm
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Surface resistivity (ohms) (ASTM D 257)
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> 1015
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Volume resistivity (ohms) (ASTM D 257)
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> 1015
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We Enable Energy: Von Roll focuses on products and systems for electrical power generation, power transmission, automotive and industrial applications. Von Roll Insulation offers electrical insulation products, systems, and services for generators, motors, transformers and automotive sensor applications.
Resin Solutions for PCB and Automotive Sensors: Von Roll and Dolph’s® potting resins serve as a crucial element in safeguarding sensor systems by protecting against environment contamination, corrosion and moisture resistance, improving heat transfer, and providing superior adhesion.
Von Roll and Dolph’s® potting resin product lines are ideally suited to protect most sensors, including parking sensors, speed sensors, inductive sensors, temperature sensors and positioning sensors. Von Roll provides cost-effective solutions for today’s high-volume production runs.
An overview of Von Roll resin brands offered worldwide:
Dolph's®, DOLPHON®, AQUA-THERM®, SYNTHITE®, Damival®, Permafil®, Damisol®, Hi-Therm®
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