AMERLOCK 400

PRODUCT DATA SHEET 

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COLOR AND GLOSS LEVEL

• Standard primer colors and custom colors
• Semi-gloss

Note: Epoxy coatings will chalk and fade with exposure to sunlight. Light colors are prone to ambering to some extent. Product tinted to custom colors are not recommended for immersion service. Only use factory grind batches for immersion.

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BASIC DATA AT 20°C (68°F)

Data for mixed product

• Number of components: Two
• Mass density: 1.4 kg/l (11.7 lb/US gal)
• Volume solids: 85 ± 2%
• VOC (Supplied):
  • Directive 2010/75/EU, SED: max. 114.0 g/kg
  • max. 163.0 g/l (approx. 1.4 lb/US gal)
  • EPA Method 24: 1.5 lb/US gal (180.0 g/l)
• Temperature resistance (Continuous): To 120°C (250°F)
• Temperature resistance (Intermittent): To 175°C (350°F)
• Recommended dry film thickness: 100–200 µm (4.0–8.0 mils)
• Theoretical spreading rate: 8.5 m²/l for 100 µm (341 ft²/US gal for 4.0 mils)
• Dry to touch: 6 hours
• Overcoating Interval Minimum: 16 hours
• Shelf life:
  • Base: 36 months (stored cool and dry)
  • Hardener: 36 months (stored cool and dry)

Notes:

• See ADDITIONAL DATA – Spreading rate and film thickness
• See ADDITIONAL DATA – Overcoating intervals
• See ADDITIONAL DATA – Curing time
• For compliance with regulations which require VOC less than 100 g/L, AMERLOCK 400 VOC can be specified interchangeably (available only in US and Canada)
• Intermittent temperature resistance should be <5% of the time, max 24 hours
• Temperature resistance data is for atmospheric condition. For immersion, contact PPG representative.

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RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES

• Remove loose paint, mill scale, rust. Surface must be dry, stable, and free of grease/oil.

Carbon steel

• Immersion: blast to ISO-Sa2½ (SSPC SP-10)
• Atmospheric: blast to ISO-Sa2½ or SSPC SP-6, or power tool clean SSPC SP-3 / SSPC SP-2, or UHP water jet SSPC SP WJ-2(L)

Concrete / Masonry

• Remove contaminants (ASTM D4258)
• Abrade surface per ASTM D4259 to ICRI CSP 3–5
• Fill voids with Amercoat 114 A epoxy filler
• Max moisture transmission: 3 lbs/1000 ft²/24 hr (ASTM F1869 or ASTM D4263)
• Alternatively ASTM D4944 moisture ≤4%

Galvanized steel

• Clean with detergent/emulsion
• Light abrasive blast SSPC SP-16, profile 40–75 µm (1.5–3.0 mils)

• 12 months weathered galvanizing can be coated after power wash

Non-ferrous metals / stainless steel

• Remove contaminants
• Abrasive blast SSPC SP-16, profile 40–100 µm (1.5–4.0 mils)

Aged coatings and repairs

• Surface must be dry, free of contamination. For single-pack coatings, extra precautions needed.

Substrate temperature

• Between 5°C (41°F) and 50°C (122°F)
• At least 3°C (5°F) above dew point

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SYSTEM SPECIFICATION

• Primers: Direct to substrate; Dimetcote Series, Amercoat 68 Series, Amerlock 2 / 400 Series, SigmaZinc Series, Amercoat Epoxies, Sigma Epoxies
• Topcoats: Amercoat 450 Series, Sigmadur Series, Sigmacover Epoxies, Amercoat Epoxies, Amershield, PSX 700

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INSTRUCTIONS FOR USE

• Mixing ratio by volume: base:hardener = 1:1
• Stir base before use. Add hardener and mix until homogeneous.

Pot life

Temp	Pot life
20°C (68°F)	2 hrs

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Air spray

• Thinner:
  • Thinner 91-92 (Global)
  • Thinner 21-06 (Amercoat 65) for NSF/ANSI 61
  • Thinner 21-25 (Amercoat 101) for non-NSF/ANSI 61 and >90°F (32°C)
• Volume: 0–10%

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Airless spray

• Thinner: Same as above
• Volume: 0–5%
• Nozzle: ~0.48 mm (0.019 in)
• Pressure: 15–18 MPa (150–180 bar; 2176–2611 psi)

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Brush/Roller

• Brush: apply evenly, well loaded brush
• Typical DFT: 80 µm (3.1 mils) in single coat

Cleaning solvent

• Thinner 90-53, Thinner 90-58 (Amercoat 12), or Thinner 21-06 (Amercoat 65)

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ADDITIONAL DATA

Spreading rate and film thickness

DFT	Theoretical spreading rate
100 µm (4.0 mils)	8.5 m²/l (341 ft²/US gal)
125 µm (5.0 mils)	6.8 m²/l (273 ft²/US gal)
200 µm (8.0 mils)	4.3 m²/l (170 ft²/US gal)

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Overcoating interval (DFT ≤ 125 µm / 5.0 mils)

Overcoating with…	Interval	10°C (50°F)	20°C (68°F)	30°C (86°F)	40°C (104°F)
Epoxy coatings	Min	36 hrs	16 hrs	6 hrs	4 hrs
	Max	3 months	3 months	2 months	1 month
Urethane & PSX	Min	36 hrs	16 hrs	6 hrs	4 hrs
	Max	1 month	1 month	14 days	7 days

Notes:

• PPG 861 accelerator halves recoat times (US only).
• Surface must be dry/clean.
• Detergent wash (Prep 88) recommended after 30 days exposure.
• If max recoat time exceeded, roughen surfaces.
• Alkyd & waterborne acrylic coatings → apply after film is dry-to-handle.

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Curing time (DFT ≤ 125 µm / 5.0 mils)

Substrate temp.	Dry to touch	Dry to handle	Full cure
10°C (50°F)	24 hrs	48 hrs	21 days
20°C (68°F)	6 hrs	20 hrs	7 days
30°C (86°F)	3 hrs	12 hrs	4 days
40°C (104°F)	1 hr	8 hrs	3 days

Notes: PPG 861 halves curing times (US only). Adequate ventilation required.

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Pot life (at application viscosity)

Temp	Pot life
10°C (50°F)	3 hrs
21°C (70°F)	2 hrs
32°C (90°F)	1 hr
40°C (104°F)	30 min

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PRODUCT QUALIFICATIONS

• Compliant with USDA Incidental Food Contact Requirements
• NFPA Class A for Flame Spread and Smoke Development
• Qualified for ANSI/NSF 61 (potable water, valves only)
• Nuclear Service Level 2 (ANSI N 5.12, ANSI N 101.2)
• LEED’s compliant for Anti-corrosive Paint category

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SAFETY PRECAUTIONS

• See Safety Data Sheet and product label
• Solvent-borne paint: avoid inhalation of spray mist/vapor, and skin/eye contact

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WORLDWIDE AVAILABILITY

Available globally, with slight modifications possible per regulations.

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REFERENCES

• Information sheet | Explanation of product data sheets

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WARRANTY

• PPG warrants title and conformity to specs.
• All other warranties (fitness for purpose, implied) are disclaimed.
• Claims must be made within 5 days of discovery, and within shelf life or 1 year from delivery.
• Failure to notify = no recovery.

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LIMITATIONS OF LIABILITY

• PPG not liable for indirect, incidental, or consequential damages.
• User must determine product suitability.
• Application variations may cause unsatisfactory results.
• Current sheets at www.ppgpmc.com.