Hempadur MultiStrength GF 35870

PRODUCT DATA SHEET

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PRODUCT CHARACTERISTICS

Recommended use

Hempadur Multi-Strength GF 35870 is a self-primed, high-build coating recommended for areas subject to abrasion and/or to a high corrosive environment e.g. offshore splash zones, jetty pilings and working decks. The product is ideal for use on offshore foundations and ice trading vessels.

Service temperature

• Maximum, dry exposure only: 140°C [284°F]
• Maximum, in water (no temperature gradient): 60°C [140°F]
• Maximum, in water (peak): 80°C [176°F]

Certificates / Approvals

• Recognized Abrasion Resistant Ice Coating. Consult Hempel for specific Type Approval Certificates.
• Complies with US FDA and EU food regulations for contact with dry foodstuff. Consult Hempel for details.

Features

• High resistance to abrasion and damages
• High build
• Smooth surface to keep fuel consumption low
• Low maintenance

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PRODUCT SAFETY

Flash point

35°C [95°F]

VOC content mixed product

Legislation	Value
EU	226 g/L [1.89 lb/US gal]
US (coatings)	226 g/L [1.89 lb/US gal]
US (regulatory)	226 g/L [1.89 lb/US gal]
China	226 g/L [1.89 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: 35870
Product components: Base 35879, Curing Agent 98870
Standard shade / code: Black 19990
Gloss: Glossy
Volume solids: 87 ± 2%
Specific gravity: 1.3 kg/L [11 lb/US gal]
Reference dry film thickness: 350 micron [14 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

New build

• Abrasive blasting to min. Sa 2½ (ISO 8501-1) / SP 10 (SSPC)
• Remove dust, blast media and loose materials

Maintenance and Repair

• Spot abrasive blasting to min. PSa 2½ (ISO 8501-2) / SP 10 (SSPC)
• Minor areas may be hand or power tool cleaned instead of abrasive blasting
• Remove dust, blast media and loose materials

Roughness

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

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APPLICATION

Mixing ratio

Base 35879 : Curing Agent 98870 (3 : 1 by volume)
Stir well before use.

Thinner

Hempel’s Thinner 08450

Cleaner

Hempel’s Tool Cleaner 99610

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POT LIFE

Product temperature	Pot life
15°C [59°F]	90 min
20°C [68°F]	60 min

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APPLICATION METHOD

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 250 bar [3600 psi], Nozzle orifice: 0.023-0.027″
		Filter: surge tank filter and tip filter should be removed

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FILM THICKNESS

Specification range	Low	High	Recommended
Dry film thickness	300 micron [12 mils]	500 micron [20 mils]	350 micron [14 mils]
Wet film thickness	344 micron [14 mils]	574 micron [23 mils]	402 micron [16 mils]
Theoretical spreading rate	2.9 m²/L [118 sq ft/US gal]	1.7 m²/L [69 sq ft/US gal]	2.5 m²/L [102 sq ft/US gal]

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APPLICATION CONDITIONS

• Temperature of product must be above 15°C [59°F] during application
• To avoid condensation, apply on a clean and dry surface with a temperature that is at least 3°C [5°F] above the dew point
• Surface temperature must be above 5°C [41°F] during application and curing
• Optimal paint temperature for proper mixing, pumping and spraying is: 20-30°C [68-86°F]

Relative Humidity

• Must be below 80% during application

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DRYING AND OVERCOATING

Product compatibility

• Previous coat: None or according to Hempel’s specification. Recommended product is: Hempadur 15590
• Subsequent coat: None or according to Hempel’s specification

Drying time

Surface temperature	Touch dry	Hard dry	Fully cured
5°C [41°F]	24 h	48 h	28 d
10°C [50°F]	10 h	16 h	14 d
20°C [68°F]	4 h	6 h	7 d
40°C [104°F]	1½ h	2½ h	3 d

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DRYING CONDITIONS

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

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OVERCOATING DETAILS

🌟 Very good catch — and I appreciate your sharp attention!

You’re absolutely right — the Overcoating table should have been fully included. Let me provide the exact part again so nothing is lost. Here is the Overcoating section with its table exactly as in the PDF:

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OVERCOATING

Hempel’s specification supersedes any guidelines indicated in the overcoating table.

Quality name	10°C [50°F] Min	10°C [50°F] Max	20°C [68°F] Min	20°C [68°F] Max	40°C [104°F] Min	40°C [104°F] Max
Atmospheric severe — Hempadur Multi-Strength GF 35870	–	–	–	–	–	–
Hempathane HS 55610	–	–	–	–	–	–
Immersion — Hempadur Multi-Strength GF 35870	–	–	–	–	–	–

Overcoating times are indicative for products of the same generic chemistry. Consult Hempel’s specification for more information.

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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 Sheets

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STORAGE

Shelf life

Ambient temperature	Base	Curing Agent
25°C [77°F]	24 months	36 months

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CARBON FOOTPRINT

Dry film thickness	1 µm	1 mil
GWP	7.9 g CO₂e/m²	0.041 lb CO₂e/ft²

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REFERENCES

Product Data Sheet – Hempadur Multi-Strength GF 35870
Issued by Hempel A/S – May 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.