Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL EA 3500G Sealant Catalyst

Dow DOWSIL EA 3500G Sealant Catalyst is a platinum-based curing agent engineered for rapid, low-temperature vulcanization of silicone sealants. Part of Dow’s high-performance DOWSIL EA series, it ensures excellent adhesion, thermal stability, and shelf life. Widely used in automotive, electronics, and construction applications requiring precision cure control and consistent reliability.
  • hifull hb 630
  • hifull hb 620
  • hifull hb 630
  • hifull hb 620

Features Of Dow DOWSIL EA 3500G Sealant Catalyst

  1. Highly efficient platinum-based catalyst for rapid cure acceleration in addition-cure silicone sealants.

  2. Excellent thermal stability enabling consistent performance across wide processing temperature ranges.

  3. Low volatility formulation minimizes outgassing and supports high-reliability applications.

  4. Precise reactivity control ensures reproducible pot life and cure profile in automated dispensing systems.

  5. Compatible with standard DOWSIL™ EA-series base polymers and fillers without compromising adhesion or flexibility.

Typical Applications Of Dow DOWSIL EA 3500G Sealant Catalyst

  1. Automotive lighting assemblies requiring optical clarity and long-term UV resistance.

  2. Electronics encapsulation and conformal coating for power modules and sensors.

  3. LED packaging where low ionic contamination and thermal cycling durability are critical.

  4. Aerospace interior sealing components exposed to stringent outgassing and flammability requirements.

  5. Medical device housings demanding ISO 10993-compliant material compatibility and biostability.

Specifications Of Dow DOWSIL EA 3500G Sealant Catalyst

Chemical TypePlatinum complex (divinyltetramethyldisiloxane complex)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow liquid
Primary ApplicationsAddition-cure silicone sealants and encapsulants
Key FeaturesCure accelerator, thermally stable, low-volatility, precision dosing compatible
BenefitsImproved production throughput, enhanced bond reliability, reduced post-cure aging effects
Storage ConditionsStore at 2–8 °C in original sealed container; protect from moisture and direct sunlight
Shelf Life24 months from date of manufacture when stored as specified


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *