INTERTHANE 870 PARTE A INDIVISIBLE KIT

What is Interthane 870 Part A and why choose it?

Interthane 870 Part A (indivisible kit) is the base component of a two-component, high build, acrylic polyurethane finish from International Marina. When mixed with its dedicated curing agent (Part B) in a 7:1 volume ratio, it forms a semi-gloss protective coating offering excellent durability and long-term recoatability. It is suitable for demanding industrial environments and is designed for projects where a high gloss is not desired and a semi-gloss appearance is preferred.

Main features

• Two-component high build system: Supplied as Part A (base) to be mixed with Part B curing agent for a high build polyurethane finish.
• Durable semi-gloss finish: Acrylic polyurethane film providing excellent durability with a semi-gloss sheen.
• Long-term recoatability: Extended overcoating intervals with recommended topcoats at a range of service temperatures.
• Flexible application methods: Can be applied by airless spray, air spray, brush or roller.
• Wide color availability: Color selection via the Chromascan system.
• High solids content: 56% ± 3% volume solids (depending on color), enabling high film build in fewer coats.
• Designed for professional industrial use: Intended for use by trained applicators following relevant Health, Safety and Environmental regulations.

Technical specifications

• Product type: Acrylic polyurethane, two-component (Part A base for Interthane 870 system)
• Finish: Semi Gloss
• Colour range: Wide range via the Chromascan system
• Volume solids: 56% ± 3% (depends on color)
• Recommended dry film thickness: 3–5 mils (75–125 microns) per coat
• Approximate wet film thickness: 5.4–8.9 mils (134–223 microns)
• Theoretical coverage: 180 sq.ft/US gallon at 5 mils d.f.t; 4.48 m²/liter at 125 microns d.f.t (both at stated volume solids)
• Practical coverage: Subject to appropriate loss factors
• Mix ratio (Part A : Part B): 7 parts : 1 part by volume
• Working pot life after mixing: 7 hours at 41°F (5°C); 3.5 hours at 59°F (15°C); 2 hours at 77°F (25°C); 45 minutes at 104°F (40°C)
• Application methods: Airless spray, air spray (pressure pot or conventional), brush, roller
• Typical brush/roller film build: 2.0–3.0 mils (50–75 microns) per coat
• Recommended thinner: International GTA713 or International GTA733 (or International GTA056)
• Recommended cleaner: International GTA713, International GTA733 or International GTA056
• Touch dry time: 90 minutes at 41°F (5°C); 75 minutes at 59°F (15°C); 60 minutes at 77°F (25°C); 45 minutes at 104°F (40°C)
• Hard dry time: 30 hours at 41°F (5°C); 16 hours at 59°F (15°C); 5 hours at 77°F (25°C); 2.5 hours at 104°F (40°C)
• Overcoating interval with recommended topcoats: Minimum 30 hours at 41°F (5°C), 16 hours at 59°F (15°C), 5 hours at 77°F (25°C), 2.5 hours at 104°F (40°C); maximum extended
• Flash point (typical): Part A 95°F (35°C); Part B 122°F (50°C); Mixed 95°F (35°C)
• Product weight (mixed): 11.5 lb/gal (1.38 kg/l)
• VOC (typical): 3.14 lb/gal (377 g/l) EPA Method 24; 280 g/kg EU Solvent Emissions Directive (Council Directive 1999/13/EC); 362 g/l Chinese National Standard GB23985
• Recommended primers/intermediates: Intercure 200, Intercure 200HS, Intercure 420, Intercure 420HS, Intergard 251, Intergard 475HS, Interplus 256, Interplus 356, Interseal 670HS, Interzinc 52, Interzinc 52HS, Interzinc 315, Interzone 505, Interzone 954
• Topcoat compatibility: Designed to be topcoated with Interthane 870 itself
• Pack sizes (unit, including Part A and Part B): 20 liter unit (Part A 17.5 liter; Part B 2.5 liter); 5 US gal unit (Part A 4.38 US gal; Part B 0.63 US gal)
• Typical shipping weight (per unit): 20 liter unit – Part A 27 kg, Part B 3.1 kg; 5 US gal unit – Part A 55.1 lb, Part B 6.4 lb
• Shelf life: Minimum 12 months at 77°F (25°C), subject to re-inspection; store in dry, shaded conditions away from sources of heat and ignition
• Minimum steel temperature for application: Do not apply below 41°F (5°C)

Applications and use cases

Typical environments

• Offshore structures
• Petrochemical facilities
• Bridges
• Pulp and paper mills
• Power industry installations

When to use Interthane 870 Part A

• As part of a two-component semi-gloss polyurethane finish on new construction projects.
• As an industrial maintenance finish over recommended anti-corrosive primer systems.
• Where a high gloss appearance is not desired and semi-gloss is preferred.
• Where a versatile, high build finish is needed and single-coat overcoating of intermediates is not achievable with conventional high gloss polyurethanes.

FAQ

1. What is Interthane 870 Part A used for?

   It is the base component of a two-component acrylic polyurethane system used as a durable semi-gloss finish in new construction and industrial maintenance across offshore, petrochemical, bridge, pulp and paper, and power industry environments.

2. How should Interthane 870 Part A be mixed?

   Mix Part A (base) and Part B (curing agent) at 7 parts to 1 part by volume. Always mix a complete unit in the supplied proportions and use it within the specified working pot life.

3. Which application methods are suitable?

   The mixed product can be applied by airless spray, air spray, brush or roller. Maximum film build in one coat is best achieved by airless spray.

4. What surface preparation is required?

   Surfaces must be clean, dry and free from contamination, assessed and treated in accordance with ISO 8504. Interthane 870 should be applied over a recommended anti-corrosive primer within the specified overcoating interval.

5. Can it be used in immersion conditions?

   No. The product is not recommended for use in immersion conditions.

6. What is the recommended minimum steel temperature for application?

   Do not apply when steel temperatures are below 41°F (5°C).

7. How should equipment be cleaned after use?

   Clean all equipment immediately after use with International GTA713. Spray equipment should be periodically flushed during the working day. Do not allow mixed material to remain in hoses, guns or spray equipment.

8. What thinners can be used?

   Only the recommended International thinners (GTA713 or GTA733, or GTA056 where stated) should be used. Alternative thinners, especially those containing alcohols, can severely inhibit curing.

9. Is the product easy to recoat later?

   Yes. Interthane 870 offers long-term recoatability, with extended maximum overcoating intervals when used with recommended topcoats.

10. Who should apply Interthane 870?

    It is intended for use only by professional applicators in industrial situations, following the Safety Data Sheet and relevant regulations.

Section 14 – Transport information

Consultar ficha técnica del fabricante.

Section 8 – Individual protection measures

• This product is intended for use only by professional applicators in industrial situations, in accordance with the Safety Data Sheet and applicable Health, Safety and Environmental regulations.
• When welding or flame cutting on metal coated with this product, dust and fumes will be emitted and appropriate personal protective equipment and adequate local exhaust ventilation are required.
• Warning: Contains isocyanate. Wear an air-fed hood for spray application.

*Contenido generado por IA