Hempadur 85671

PRODUCT DATASHEET

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PRODUCT CHARACTERISTICS

Recommended use

Lining: As interior lining in tanks, pipelines, railcars, etc. for hot water, brine, crude oil, vegetable oils and other chemicals as per the Chemical protection guide (only valid for shades 11150 & 50900).
Subsea equipment: As corrosion protection for hot subsea equipment and structures according to NORSOK system 7C.

Service temperature

• From -196°C [-321°F] up to 205°C [401°F] for dry or dry/wet exposure.
• Maximum, in water (no temperature gradient): 95°C [203°F].
• Other liquids: Please contact Hempel.
• Please consult the Chemical protection guide at hempel.com.

Certificates / Approvals

• Approved by WRAS for contact with potable water. The WRAS approval is valid after the final coat has cured for at least 7 days at 20°C followed by 20 hours at 40°C.
• Complies with US FDA and EU food regulations for contact with liquid and dry foodstuff. Consult Hempel for details.
• Meets requirements to NORSOK M-501 when used as part of a predefined paint system. Edition 6, System 3C, 3D, 3E, 3F. Edition 7, System 7C, 7F.
• Tested and assessed according to Aramco SAES-H-101. APCS 2A, 2B, 2C.

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PRODUCT SAFETY

Flash point

26°C [79°F]

VOC content mixed product

Legislation	Value
EU	317 g/L [2.65 lb/US gal]
US (coatings)	317 g/L [2.65 lb/US gal]
US (regulatory)	317 g/L [2.65 lb/US gal]
China	317 g/L [2.65 lb/US gal]

According to specific legislation, see details in the Explanatory Notes available at Hempel website, hempel.com or at your local Hempel website. VOC values may vary with shade; please consult the Safety Data Sheet, section 9.

Handling

Handle with care. Before and during use, observe safety labels on packaging and paint containers and follow all local and national safety regulations. Always consult Hempel’s Safety Data Sheet for this product along with the Product Data Sheet.
For professional use only.

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PRODUCT DATA

• Product code: 85671
• Product components: Base 85675, Curing Agent 97371
• Standard shade / code: Light grey 11150
• Gloss: Flat
• Volume solids: 68 ± 2%
• Specific gravity: 1.7 kg/L [14 lb/US gal]
• Reference dry film thickness: 100 micron [4.0 mils]

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SURFACE PREPARATION

Cleanliness

• Remove oil, grease and other contaminants by suitable detergent cleaning.
• Remove salts, detergents and other contaminants by high pressure fresh water cleaning.
• Concrete: According to Hempel’s Specification.

New build 

• Abrasive blasting to min. Sa 2½ / SP 10 (SSPC).
• Stainless steel, aluminium, and other non-ferric metals: use non-metallic blast media (corundum, garnet, etc.).
• Remove dust, blast media, loose materials.

Maintenance and Repair

• Abrasive blasting to min. Sa 2½ / SP 10 (SSPC).
• Stainless steel, aluminium, and other non-ferric metals: use non-metallic blast media (corundum, garnet, etc.).
• Remove dust, blast media, loose materials.

Roughness

• Surface profile Medium (G) (ISO 8503-2)

Consult Hempel’s separate Surface Preparation Guidelines for more
details.

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APPLICATION

Mixing ratio

Base 85675 : Curing Agent 97371 (8.8 : 1.2 by volume)

Thinner

Hempel’s Thinner 08450, Hempel’s Thinner 08630

Cleaner

Hempel’s Tool Cleaner 99610

Pot life

Temp	Induction time	Pot life
15°C [59°F]	20 min	3½ hours
20°C [68°F]	15 min	3 hours
30°C [86°F]	5 min	1 hour

Application method

Tool	Thinning max vol.	Parameters
Airless spray	10%	200 bar [2900 psi], 0.017-0.021″ nozzle
Brush	10%	Not Applicable

If brush or roller is used, more coats will be necessary. Brush/roller limited to stripe coating and minor repairs.

Film thickness

Spec	Low	High	Recommended
Dry	90 micron [3.6 mils]	175 micron [7.0 mils]	100 micron [4.0 mils]
Wet	133 micron [5.3 mils]	258 micron [10 mils]	147 micron [5.9 mils]
Theoretical spreading rate	7.5 m²/L [306 sq ft/US gal]	3.9 m²/L [159 sq ft/US gal]	6.8 m²/L [277 sq ft/US gal]

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APPLICATION CONDITIONS

• Product temperature above 15°C [59°F] during application.
• Surface temperature above 10°C [50°F], at least 3°C [5°F] above dew point.

Relative Humidity

• Below 80% during application and curing.

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DRYING AND OVERCOATING

Temp	Touch dry	Surface dry	Hard dry	Fully cured
10°C [50°F]	6 h	6 h	11 h	13 d
20°C [68°F]	2 h	3 h	6½ h	7 d
30°C [86°F]	1½ h	1½ h	3 h	5 d
40°C [104°F]	1 h	1 h	1½ h	3 d

Overcoating

Quality	10°C [50°F]	20°C [68°F]	30°C [86°F]	40°C [104°F]
Atmospheric severe min/max	25 h / 47 d	16 h / 21 d	8 h / 10 d	5 h / 6½ d
Immersion min/max	25 h / 47 d	16 h / 21 d	8 h / 10 d	5 h / 6½ d

Drying conditions

– To obtain the drying time stated, it is important to maintain sufficien ventilation during application, drying and curing

Overcoating details

– If the maximum overcoating interval is exceeded, roughening of the surface is necessary to ensure intercoat adhesion.
– The surface must be dry and clean prior to application.

Other remarks

– Epoxy coats have an inherent tendency of chalking in outdoor exposure. This does not affect the performance of the coating.
– Hempel’s Specification supersedes any recommendations given in the Product Data Sheet

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STORAGE

Temp	Base	Curing Agent
25°C [77°F]	12 months	12 months

Shelf life from production date in original unopened containers. Storage at elevated temperatures may reduce shelf life. The product quality must be re-inspected after shelf life expiry.

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CARBON FOOTPRINT

Dry film thickness	1 µm	1 mil
GWP	9.1 g CO₂e/m²	0.047 lb CO₂e/ft²

The carbon footprint is for 1 square meter / square foot of surface area with a dry film thickness of 1 micron / mil.
The scope includes raw materials, in-bound transport to the Hempel factory, Hempel manufacturing processes, and any Volatile Organic Compounds emitted during and after the application of the product.
It is calculated based on the standard shade defined in this PDS. Values may vary with shade.

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REFERENCES

Product Data Sheet – Hempadur 85671
Issued by Hempel A/S – June 2025
Document Version: 4/4
Source: https://www.hempel.com

Technical Guidelines and Explanatory Notes
Last accessed: 28 May 2025
Reference link: https://www.hempel.com/service-and-support/technical-guidelines

Note: Always consult the latest version of the Product Data Sheet and associated documents directly from Hempel’s official website to ensure accuracy and compliance with the most current recommendations.