Gütermann Tera 40 | 100% Continuous Filament Polyester Gütermann Tera 40 is a high-tenacity, industrial thread designed for demanding applications requiring superior strength and durability. This heavy-weight polyester thread is built to resist environmental stresses, heat, and chemicals. Technical Specifications Length: 1200m (1312 yd) cone (Requires a cone stand for home machines). Strength: High breaking strength (approximately 8.3 lbs / 4,100 cN) with high abrasion resistance. Elasticity: Low stretch (under 14%) for consistent seam tension. Sizing: Tex 75 | Govt. Size E / B69. Needle Recommendation: NM 90–110 (Singer 14–18). Key Performance Ratings Tested to ISO 105 Grade 4+ standards, this thread is resistant to: Environmental Stress: Sunlight (UV), water, and perspiration. Chemicals: Hypochlorite (bleach) and dry cleaning solvents. Mechanical Wear: Rubbing and heavy friction. Primary Applications Outdoor Gear: Ideal for backpacks, bags, hammocks (sewn channels), and high-stress reinforcement areas. Technical Textiles: Heavy-duty items such as tents, tarps, and protective covers. Workwear & Apparel: Durable seams for professional workwear and technical garments requiring high abrasion resistance. Home Textiles: Specialized upholstery or items frequently exposed to the elements.