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Weldas Arc Knight® 38-4336 flame-retardant cotton welding apron 520 g/m²
The Arc Knight® line is a new approach to welding clothing and a real step forward in personal protection design. It was created for professionals who need protection at the level of leather clothing but are looking for a lighter, more comfortable and breathable option. Arc Knight® combines innovative heavy flame-retardant cotton with uncompromising build quality and sets a new standard in protection against the most severe welding hazards.
Key features
Made of innovative heavy flame-retardant (FR) cotton with a weight of 520 g/m²
Protection against spatter and heat comparable to leather clothing
All seams sewn with 3-ply twisted DuPont™ KEVLAR® thread for maximum durability
Designed to meet the requirements of the highest Class 2 of EN ISO 11611
Much lighter and more comfortable than traditional leather aprons
Dimensions 91 cm x 60 cm for good coverage of the torso and thighs
Technical Details and Certification
Materials and Construction
The effectiveness of the Arc Knight® apron comes from an advanced material: a specially designed flame-retardant cotton with a weight of 520 g/m². This densely woven FR fabric is a strong barrier against hot spatter and intense radiant heat and offers a level of safety that comes close to split cowhide in tests. The construction is held together with very strong 3-ply twisted DuPont™ KEVLAR® aramid thread. This thread does not melt or burn at extreme temperatures, which keeps the seams from tearing and the apron from breaking down even in the toughest working conditions.
Safety and Certification
The 38-4336 apron, part of the Arc Knight® series, is designed and made to the strict requirements of EN ISO 11611 for Class 2 (A1+A2). Class 2 is the highest level of protection for welding clothing, intended for the most hazardous processes that produce large amounts of spatter and high levels of radiant heat. When you choose this product, you invest in certified safety backed by the Weldas reputation and strict quality testing.
Product Specification
| Feature | Value |
|---|---|
| Catalogue number | 38-4336 |
| Material | Flame-retardant cotton (FR) |
| Fabric weight | 520 g/m² |
| Thread | 3-ply twisted DuPont™ KEVLAR® thread |
| Standard | EN ISO 11611:2015 |
| Protection class | Designed for Class 2 / A1+A2 |
| Dimensions | Length 91 cm, width 60 cm |
| Fastening | Adjustable straps |
What's in the Box?
- 1 x Weldas Arc Knight® 38-4336 welding apron
Recommended Applications
- With its top level of protection, the Arc Knight® apron is the right choice for the most demanding welding and allied tasks:
- MMA welding (basic or cellulosic electrodes)
- MIG/MAG welding with flux-cored wires at high currents
- Self-shielded welding (FCAW-S)
- Plasma cutting and air carbon arc gouging
- Oxy-fuel cutting and other processes with high heat input
About Weldas
Weldas is a brand made by welders for welders. Since 1984 it has supplied professionals around the world with top-class PPE, guided by a philosophy of uncompromising quality, comfort and certified safety. Thanks to full control over the production process, Weldas ensures outstanding durability and ergonomics, which makes it "The Professionals' Choice".


