PRODUCT DATASHEET

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COLOR AND GLOSS LEVEL

• Pink, gray
• Eggshell

Note:
Epoxy coatings will chalk & fade with sunlight, heat, or chemical exposure.
Light colors will darken over time.
Some batch-to-batch variation in color expected.

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BASIC DATA AT 20°C (68°F)

(Mixed Product)

Property	Value
Number of components	Two
Mass density	1.7 kg/l (14.2 lb/US gal)
Volume solids	68 ± 2%
VOC (Supplied)	2010/75/EU SED: max 195 g/kg; max 329 g/l (2.7 lb/gal) EPA Method 24: 310 g/l (2.6 lb/gal)
Recommended DFT	100–150 µm (4.0–6.0 mils)
Theoretical spreading rate	4.5 m²/l @ 150 µm (182 ft²/gal @ 6 mils)
Dry to touch	3 hours
Overcoating interval	Min: 8 hours • Max: 14 days
Full cure	3 days
Shelf life	Base: ≥12 months (cool & dry) Hardener: ≥12 months

Notes:

• See Additional Data – Overcoating intervals & curing time
• Recommended max total DFT = 350 µm (14 mils); local max: 400 µm (16 mils)

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RECOMMENDED SUBSTRATE CONDITIONS & TEMPERATURES

Substrate Conditions

• Steel: blast cleaned to ISO Sa 2½, profile 40–70 µm (1.6–2.8 mils)
• Surface must be perfectly dry during application
• Stainless steel: degrease + sweep blast per SSPC SP-16, profile 40–100 µm (1.5–4.0 mils)

Application Temperatures

• Substrate temp must be >5°C (41°F)
• Substrate must be 3°C (5°F) above dew point

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INSTRUCTIONS FOR USE

Mixing Ratio (By Volume)

Base : Hardener = 87 : 13

• Mixed component temperature should preferably be >15°C (59°F)
• Excess thinner reduces sag resistance
• Add thinner after mixing components

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Induction Time

Temperature	Induction Time
5°C (41°F)	20 minutes
10°C (50°F)	15 minutes
15°C (59°F)	10 minutes

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Pot Life

2 hours at 20°C (68°F)
(See Additional Data – Pot Life)

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APPLICATION METHODS

Air Spray

Item	Value
Recommended thinner	THINNER 91-92 (ambient) • THINNER 21-25 (hot surfaces)
Volume of thinner	5–10%
Nozzle orifice	2.0 mm (0.079 in)
Nozzle pressure	0.3 MPa (3 bar; 44 psi)

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Airless Spray

Item	Value
Recommended thinner	THINNER 91-92 or 21-25
Volume of thinner	5–10%
Nozzle orifice	0.46–0.53 mm (0.018–0.021 in)
Nozzle pressure	15 MPa (150 bar; 2176 psi)

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Brush / Roller

Item	Value
Recommended thinner	THINNER 91-92
Volume of thinner	0–5%
Cleaning solvent	THINNER 90-53

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ADDITIONAL DATA

Overcoating Intervals

(Up to 150 µm DFT)

Temp	Min	Max
5°C	24 hrs	28 days
10°C	20 hrs	25 days
15°C	14 hrs	21 days
20°C	8 hrs	14 days
30°C	6 hrs	7 days

Surface must be dry and free from contamination.

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Curing Time

(Up to 150 µm DFT)

Temp	Dry to Touch	Dry to Handle	Full Cure
5°C	28 hrs	60 hrs	7 days
10°C	12 hrs	30 hrs	5 days
15°C	6 hrs	15 hrs	4 days
20°C	3 hrs	5 hrs	3 days
30°C	2 hrs	4 hrs	48 hrs

Adequate ventilation required (Information Sheets 1433 & 1434).

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Pot Life (Application Viscosity)

Temp	Pot Life
5°C	8 hrs
10°C	6 hrs
15°C	4 hrs
20°C	2 hrs
30°C	1 hr

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SAFETY PRECAUTIONS

• Refer to Information Sheets 1430, 1431 and MSDS
• Avoid inhalation of spray mist or vapors
• Avoid contact with exposed skin or eyes

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WORLDWIDE AVAILABILITY

Product may be modified to meet local regulations.
Alternative Product Data Sheets may apply.

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WARRANTY & LIMITATIONS OF LIABILITY

Full PPG warranty and disclaimer text exactly as included in the PDF.

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REFERENCES

Product Data Sheet – SIGMATHERM™ 230
Issued by PPG Protective & Marine Coatings
Document Reference: Ref. 7445
Publication Date: November 30, 2021
Source: https://www.ppgpmc.com

Technical Guidelines & Safety Information
Last accessed: 28 May 2025