Enviroline 405HTR is a heat-resistant coating in the epoxy system. Widely used in the petrochemical industry for various cargo loadings, including 150 °C (300 °F) crude oil, refined products (including unleaded blended gasoline and solvents) and 150 °C (300 °F) produced water. An ultra-high-solids, two-component polycycloamine-cured lining using advanced epoxy phenolic technology, reinforced with glass fibre and flake. The 12-hour "curing time" is given per the minimum curing time required for all chemicals on the chemical resistance list at the specific substrate temperature before immersion. Parameters on this page: volume solids 98% ± 2%, dry film thickness 500–1500 µm (20–60 mil), theoretical spreading rate 1.30 m²/L.
Source: AkzoNobel original technical data sheet (TDS) "Enviroline 405HTR"; spreading rate and other values are converted from TDS parameters and are for selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 98% ± 2% |
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| Dry Film Thickness | 500–1500 µm (20–60 mil) |
| Theoretical Spreading Rate | 1.30 m²/L |
| VOC | — |
| Density / Specific Gravity | 1.57 kg/L (13.1 lb/gal). VOC 0.20 lb… |
| Number of Components | Two-component |
| Thinner | For specific advice, refer to the Enviroline Application Guide |
| Mixing Ratio | 2 parts : 1 part (by volume) |
| Colour / Appearance | Yellow-brown, brown, ENVIROLINE 405HTR; gloss: not applicable |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
An ultra-high-solids, two-component polycycloamine-cured lining using advanced epoxy phenolic technology, reinforced with glass fibre and flake.
Provides corrosion protection for pressure vessels, steel tanks, valve cores and pipes used to contain various products/cargoes, especially in high-temperature application environments.
Widely used in the petrochemical industry for various cargo loadings, including 150 °C (300 °F) crude oil, refined products (including unleaded blended gasoline and solvents) and 150 °C (300 °F) produced water. Withstands routine steam cleaning.
Withstands various renewable/bio feedstocks and refined products (oils), including animal/vegetable oils, biodiesel, ethanol and other cargoes and their high-temperature application environments.
The product is also suitable for the exterior coating of buried pipes.
Meets the definition of thick-film reinforced lining coatings in Table 6.1.i of API 652 and API 653.
| Colour | Yellow-brown, brown, ENVIROLINE 405HTR; gloss: not applicable |
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| Volume Solids | 98% ±2% (ISO 3233:1998) |
| Typical thickness | Dry film 500–1500 µm (20–60 mil), equivalent to wet film 510–1531 µm (20.4–61.2 mil) |
| Theoretical Spreading Rate | 1.30 m²/L at 750 µm dry film thickness and the stated volume solids; 52 ft²/US gal at 30 mil dry film thickness and the stated volume solids |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Suitable for airless spray, plural-component airless spray. Drying time; self-recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 10°C (50°F) | 16 h | 23 h | 30 h | |
| 15°C (59°F) | 10 h | 16 h | 21 h | |
| 25°C (77°F) | 2.5 h | 6.5 h | 10 h | |
| 40°C (104°F) | 1.5 h | 2.5 h | 3 h | 6 h |
The listed values apply to closed tank or vessel environments.
| Flash point (typical) | Component A 66 °C; Component B 66 °C; mixed 66 °C |
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| Product weight | 1.57 kg/L (13.1 lb/gal). VOC 0.20 lb/gal (24 g/L) US EPA Method 24. 51 g/kg. EU Solvent Emissions Directive, 2010 Commission Directive No. 75. For further details, see the "Product Characteristics" section. |
All surfaces to be coated must be clean and free of contamination. Before application, all surfaces must be assessed and prepared in accordance with ISO 8504:2000.
Where necessary, remove weld spatter and grind welds and sharp edges smooth. Oil and grease must be removed in accordance with the SSPC-SP1 solvent cleaning standard.
Blast cleaning: for ideal performance, Enviroline 405HTR must be applied to surfaces blast cleaned to Sa 3 (ISO 8501-1:2007) or SSPC-SP5. If not used in high-temperature and/or severe environments, Enviroline 405HTR may be used on surfaces blasted to Sa 2½ (ISO
| 8501-1:2007) or SSPC-SP10. For details, consult the International Paint Protective Coatings division. | Recommended surface roughness 75–125 µm (3–5 mil). Enviroline 405HTR must be applied before the steel surface oxidises. If oxidation has occurred, the oxidised areas shall be fully re-blasted to the above standard; dehumidification equipment may be used to maintain blast cleanliness. |
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| Mixing | Obtain the detailed Enviroline 405HTR application guide before use. |
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This product is supplied in two containers as one unit. Mix the two components in the specified ratio in one operation, and use within the specified pot life.
| Mixing ratio | 2 parts : 1 part (by volume) |
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| Pot life | 25°C (77°F) | 40°C (104°F) |
| 50 min | 30 min |
| Plural-component airless spray | Recommended nozzle tip size 0.53–0.68 mm (21–27 thou); total paint pressure at the nozzle not less than 211 kg/cm² (3000 psi) |
|---|---|
| Suitable for airless spray | Suitable |
| Brush | Suitable | For small areas only |
| Thinner | Generally not required | For specific advice, refer to the Enviroline Application Guide. |
| Cleaner | Enviroline 71C / International GTA203 |
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| Interruption of work | Do not leave paint in hoses, spray guns or spray equipment. Flush all equipment thoroughly with Enviroline 71C. Once mixed, paint should not be resealed. If work is interrupted for a long time, use a freshly mixed batch when resuming. |
| Cleaning | Clean all equipment immediately after use with Enviroline 71C. Flushing spray equipment periodically during daily work is good practice. Cleaning frequency depends on the volume sprayed, temperature and time, including all delays. |
Surplus paint and empty containers must be disposed of in accordance with the relevant laws/regional regulations.
Before use, refer to the detailed Enviroline 405HTR application procedure.
This datasheet provides a brief guide to using Enviroline 405HTR. Project-specific requirements depend on the end use of the tank or vessel and its service conditions. Always consult the International Paint Protective Coatings division to confirm the suitability of Enviroline 405HTR for the product to be stored.
Always follow the detailed coating specification recommended by the International Paint Protective Coatings division.
Apply by two-component airless spray or standard airless spray (with in-line heater). Other application methods, such as brush or roller, may require multiple coats and are suitable only for small areas or stripe coating. Stripe coating is an essential requirement of good practice and should form part of any lining system. For severely pitted or porous steel, after spraying about 50% of the required film thickness, immediately roll with a short-pile roller or squeegee to work the coating into the bottom of the pits.
For two-component airless spray application, for ideal results, heat the product before application: component A (resin) up to 60 °C (140 °F), component B (curing agent) up to 40 °C (105 °F).
The surface temperature to be coated must be at least 3 °C (5 °F) above the dew point. Do not apply when the steel temperature is below 10 °C (50 °F).
The climatic conditions in the tank must be controlled per the recommendations in the Enviroline 405HTR "Application Procedure". The relative humidity in enclosed storage tanks shall be controlled with dehumidification equipment. Without dehumidification equipment, single-coat application techniques shall be used to avoid intercoat adhesion problems.
After the coating system is fully cured, the dry film thickness shall be checked with a non-destructive magnetic gauge to verify the minimum thickness of the coating system. The whole coating system shall be free from pinholes and skips. The cured film shall be free from runs, sags, drips, inclusions or other defects. All defects shall be repaired. Repaired areas shall be re-tested and fully cured before the lining is put into service.
Commissioning: to fully realise the chemical resistance of Enviroline 405HTR, it is recommended to operate per the following minimum curing times.
| "Temperature | Curing time |
|---|---|
| 10°C (50°F) | 5 days |
| 25°C (77°F) | 14 h |
| 40°C (104°F) | 12 hours"Curing times are given based on the minimum curing time required for all chemicals on the chemical resistance list at the specific substrate temperature before immersion. Any specific curing requirements covered by third-party certificates have not been taken into consideration. |
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
Enviroline 405HTR shall always be applied over correctly prepared substrates. A primer is not applicable to this system.
Enviroline 405HTR is a single-coat system. Where necessary, it may only be self-overcoated or self-repaired.
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | Available in the following documents on the website: • Definitions and Abbreviations • Surface Preparation • Coating Application • Theoretical and Practical Spreading Rates • Enviroline 405HTR Application Guide. These sections are also available as separate brochures. |
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This product is intended for professional applicators in industrial use only.
All work, including the application and use of this product, must comply with the relevant national standards, laws and regulations on safety, health and environmental protection.
During application and the subsequent drying period (for common drying times, see the product data sheet), provide adequate ventilation to keep solvent concentrations within safe limits and prevent fire and explosion. Forced ventilation is required in confined spaces. During application and drying, personal ventilation and respiratory protection (e.g. air-fed hood or suitable filter mask) must also be provided. Take the necessary measures to prevent skin and eye contact with the coating (e.g. protective clothing, gloves, goggles, mask, barrier cream).
Before use, read and follow the Material Safety Data Sheet and the Health and Safety section of the application procedure for this product (for two-component coatings, those of the base and curing agent).
If welding or cutting is performed on metal substrate previously coated with this product, dust and fumes will be released; use suitable personal protective equipment and local exhaust ventilation.
The specific safety measures depend on the application method and working environment. If these warnings or instructions are not fully understood or cannot be strictly observed, do not use the product and consult International Paint.
Warning: this product contains liquid epoxy and modified polyamines and may cause skin sensitisation if handled improperly.
| Packaging Specifications | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 18 L | 12 L | 20 L | 6 L | 10 L |
| 4 US gal | 2.67 US gal | 5 US gal | 1.33 US gal | 2 US gal |
| 150 US gal¹ | 100 US gal | 50 US gal¹ | 50 US gal¹ 50 US gal¹ | |
¹¹ Each kit 150 US gal, including 2 × 50 US gal of component A and 1 × 50 US gal of component B. For other pack sizes, contact AkzoNobel.
| Packaging Specifications | Component A | Component B |
| 18 L | 18.68 kg | 10.04 kg |
| 4 US gal | 33.6 lb | 18.6 lb |
| 150 US gal¹ | 677.7 lb¹ | 739.4 lb¹ |
¹ Each kit 150 US gal, including 2 × 678 lb of component A and 1 × 74 lb of component B
| Shelf life | At 25 °C (77 °F), the paint can be stored for 12 months if sealed intact, after which inspection is required. Store in a dry, cool place away from heat sources and ignition sources. |
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Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
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