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Silicone Foam HES‑7203G‑350 Silicone Foam HES‑7203G‑350 Silicone Foam HES‑7203G‑350 Silicone Foam HES‑7203G‑350

Silicone Foam HES‑7203G‑350

TONMAX Silicone Foam HES‑7203G‑350 is non‑toxic eco‑friendly flame‑retardant foam made of silicone rubber and flame retardant. It maintains stable elasticity and low compression‑set under high temperature, suitable for battery module thermal management, cabinet sealing, photovoltaic, telecommunication and home appliance applications.

SEO information

Product Name: Silicone Foam HES‑7203G‑350

SKU / Model No.: HES‑7203G‑350

SEO Title: Silicone Foam HES‑7203G‑350 | UL94 V‑0 Flame‑Retardant Silicone Foam for Battery Thermal Management & Sealing

URL Slug: silicone-foam-hes-7203g-350

Product Description: TONMAX HES‑7203G‑350 silicone foam is non‑toxic flame‑retardant foam made of organic silicone and flame retardant. It keeps stable elasticity and low compression‑set under high temperature. UL94 V‑0 flame retardant grade, good electrical insulation. Applied for battery module thermal management, cabinet sealing, photovoltaic, telecommunication and home appliances. Store in carton at 23℃,65%RH; avoid sunlight and unpackaged exposure. Shelf‑life 12 months after receipt.

Keywords: Silicone Foam HES‑7203G‑350,flame‑retardant silicone foam,battery module thermal management foam,low compression‑set silicone cushion,electrical insulation silicone foam,new‑energy battery sealing foam,photovoltaic silicone foam pad,creep‑resistant silicone foam


Silicone Foam HES‑7203G‑350

Product Overview 
TONMAX HES‑7203G‑350 silicone foam is flame‑retardant foamed material compounded of organic silicone rubber and flame‑retardant additives. Non‑toxic and environmentally‑friendly, it retains stable elasticity and excellent anti‑compression‑deformation performance under high‑temperature conditions. Widely adopted for new‑energy battery module thermal management, cabinet bottom support and sealing, photovoltaic modules, telecommunication equipment and household electrical appliances.

Main Applications 
• Thermal‑management cushion, gap filling and buffering for new‑energy battery modules
• Bottom supporting cushion and sealing gasket inside battery & equipment cabinets
• Shock‑absorbing and insulating buffer components for photovoltaic module assemblies
• Insulating sealing pads for telecommunication equipment cabinets • Heat‑resistant sealing and vibration‑damping parts for household electrical appliances

Core Advantages 
✅ Excellent flame retardancy and fire‑resistance performance, UL94 V‑0 rated
✅ Outstanding resistance to compression set and anti‑creep property under high‑temperature working condition
✅ Reliable electrical insulation performance, non‑toxic and eco‑friendly formulation
✅ Low thermal conductivity for heat insulation function
✅ Low water‑absorption rate, stable performance in humid environment
✅ Multiple optional colors, easy for die‑cutting to realize custom shapes

Storage Note: Store inside cartons at 23℃ and 65% relative humidity. Avoid direct sunlight and long‑term unpackaged exposure. Shelf‑life: 12 months upon receipt of goods.


ItemSpecificationsTest Standard
ColorGray / Black / White, customizableVisual inspection
Density0.37 ±0.04 g/cm³ASTM D1056
25% Compressive Stress65 ±10 kPaASTM D1056
Compression Permanent Deformation<5.0 % (100℃,24h,50% compression)ASTM D1056
Tensile Strength>0.3 MPaASTM D412
Elongation at Break>80 %ASTM D412
Water Absorption<5 %GB/T 8810‑2005
Volume Resistivity1.0×10¹⁰ Ω·cmGB/T 1692‑2008
Dielectric Constant>2.5 kV/mmGB/T 1695‑2005
Thermal Conductivity0.07 W/(m·k)ASTM C518
Flame RetardancyUL94 V‑0UL94
NoteAll values above are for reference only.‑


Receiving, Inspection & After-sales Policy

Reliable Quality · Professional Service · Long-term Partnership

Huizhou Dongming New Energy Materials Co., Ltd. is committed to supplying dependable material products and professional customer support. To help you fully understand the acceptance procedure, application requirements, storage specifications and after-sales liabilities, please read the following terms carefully before purchasing and using our products.

 

1、Inspection upon Receipt 

Within 3 working days after receipt of goods, the customer shall unpack and inspect the shipment, and verify the model, specification, quantity and appearance of products. If any abnormality such as damage, wrong delivery or model mismatch is found, please contact us with photos or videos as evidence. Failure to notify us within the time limit shall be deemed acceptance of the product in terms of appearance and quantity.

2、Product Application Scope 

All technical data of our products are typical values obtained from standard laboratory tests, for reference only in product selection. Customers shall conduct sampling tests and reliability verification in advance according to their own working conditions, service environment and assembly requirements, and confirm compatibility before mass use. Product failure caused by skipping pre-sample verification or operating beyond the rated temperature, pressure and other permissible conditions is not covered by warranty.

 

3、Storage & Shelf Life 

Products shall be hermetically stored in a cool, dry and dark place. Keep away from high temperature, moisture, oil contamination and prolonged UV exposure. Use the products within the shelf life marked on the label. Deterioration or premature aging resulting from improper storage by the customer is excluded from after-sales service.

 

4、Handling of Quality Claims 

If the non-conformity is confirmed by both parties to be an inherent material quality defect, we will prioritize replacement, supplementary delivery, or negotiate a refund. We shall NOT be liable for any indirect losses including secondary processing, finished product assembly, construction work, production shutdown losses, etc.

 

5、Exclusions from After-sales Warranty

① Damage caused by expired shelf life or improper storage conditions; 

② Quality complaints raised after the customer cuts, processes or modifies the products;

③ Wrong product selection or operation beyond permissible working conditions; 

④ Man-made damage, tearing by external force, or corrosion by chemicals; 

⑤ Damage caused by force majeure such as fire, flood and other natural disasters.

 

6、Miscellaneous

 If special warranty terms or after-sales arrangements are separately agreed between the customer and our company, the provisions stipulated in the formally signed contract shall prevail. For further information about product specifications, application suitability, storage guidance or after-sales support, please reach out to our customer service team. We value long-term cooperation and keep providing stable material solutions and professional support for our partners.