Heat Patch OEM Manufacturing: Complete Guide 2026
Introduction
Heat patches are innovative transdermal delivery systems designed to provide sustained warming effects for muscle pain relief, joint stiffness treatment, and cold-related discomfort. These patches utilize air-activated or self-heating technology to deliver long-lasting warmth without external power sources. KONGDY Medical, with 36 years of experience in transdermal patch manufacturing, offers professional OEM/ODM services for heat patches.
What Are Heat Patches?
Heat patches are adhesive patches containing heating elements that produce warmth through exothermic chemical reactions or air exposure. They are designed for single-use application and can provide continuous heat for 8-12 hours, making them ideal for treating chronic muscle pain, arthritis, and menstrual cramps.

Key Ingredients and Formulation
Our heat patches are formulated with premium-grade ingredients to ensure optimal warming performance and skin safety:
- Iron Powder (35-45%): Primary heating element that oxidizes when exposed to air
- Activated Carbon (10-15%): Distributes heat evenly across the patch
- Sodium Chloride (8-12%): Catalyst for the oxidation reaction
- Water (15-20%): Essential for the iron oxidation process
- Vermiculite (5-10%): Insulates and maintains consistent temperature
- Natural Herbs (2-5%): Ginger extract, capsicum extract for enhanced warming effect
- Tourmaline Powder (1-3%): Far-infrared emission for deeper tissue warming
OEM Manufacturing Process
1. Formula Development
Our R&D team develops custom heat formulations based on client specifications. We adjust heating temperature, duration, and adhesion properties to meet diverse market requirements for different therapeutic purposes.
2. Raw Material Preparation
All ingredients are sourced from certified suppliers and undergo strict quality testing before use. We maintain detailed records for full traceability and ensure compliance with international safety standards.
3. Production and Packaging
Advanced automated production lines ensure precise ingredient distribution and consistent patch quality. Our facilities can produce air-activated patches, self-heating wraps, and adhesive warmers in various sizes and shapes.
4. Quality Control
Every batch undergoes comprehensive testing including heat output, duration, adhesion strength, and skin sensitivity analysis. Our QC team follows ISO 13485 standards throughout the production process.

Product Specifications
| Parameter | Specification |
|---|---|
| Patch Size | 9cm x 13cm, 10cm x 15cm, Custom sizes available |
| Heating Temperature | 40-50°C, 50-60°C options available |
| Heat Duration | 8-12 hours continuous warming |
| Shelf Life | 24 months from production date |
| Packaging | Individual airtight sachets, retail boxes (3/5/10 pieces) |
| Storage | Cool, dry place, avoid direct sunlight |
Why Choose KONGDY Medical?
- 36 Years of Experience: Established in 1989, KONGDY has extensive expertise in transdermal patch manufacturing and heating technology.
- ISO 13485 Certified: Our facilities meet international quality management standards for medical devices.
- Strong R&D Capabilities: Professional team dedicated to formula development and product innovation for various therapeutic applications.
- Competitive Pricing: Efficient production processes enable cost-effective solutions for large orders.
- Flexible OEM/ODM Services: We support custom formulations, packaging designs, and brand development.
- Fast Delivery: Standard orders delivered within 15-25 days after sample approval.
Conclusion
KONGDY Medical is your trusted partner for heat patch OEM manufacturing. With decades of experience and comprehensive production capabilities, we deliver high-quality products at competitive prices. Our professional team supports you from formula development to final packaging, ensuring your brand success in the global market.
