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AMERLOCK® 400 GF / SIGMASHIELD™ 400

AMERLOCK® 400 GF / SIGMASHIELD™ 400

DESCRIPTION

Two-component, high solids glass flake reinforced polyamine cured epoxy coating


PRINCIPAL CHARACTERISTICS

  • Surface tolerant primer/coating for wide use in Marine and Protective Coatings
  • Glass-flake reinforced for improved impact and abrasion resistance
  • Excellent resistance to corrosion
  • Long-term protection at areas subject to heavy wear and tear
  • Very low water permeability, due to glass flake barrier
  • Suitable for immersion service
  • Compatible with cathodic protection systems
  • Pass cryogenic cyclic test from -196°C (-321°F) to 200°C (392°F)
  • Designed to prevent corrosion under insulation (CUI) of carbon steel and stainless steel
Category Tag Brand:

PRODUCT DATASHEET


COLOR AND GLOSS LEVEL

  • Standard and custom colors
  • Eggshell

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.


BASIC DATA AT 20°C (68°F)

Data for mixed product

  • Number of components: Two
  • Mass density: 1.5 kg/l (12.5 lb/US gal)
  • Volume solids: 87 ± 3%
  • VOC (Supplied): max. 172.0 g/l (approx. 1.4 lb/US gal)
  • China GB 30981-2020 (tested): 140.0 g/l (approx. 1.2 lb/gal)
  • Temperature resistance (Continuous): To 218°C (420°F)
  • Temperature resistance (Intermittent): To 232°C (450°F)
  • Recommended dry film thickness: 125 – 750 µm (5.0 – 30.0 mils) depending on system
  • Theoretical spreading rate: 4.4 m²/l for 200 µm (174 ft²/US gal for 8.0 mils)
  • Dry to touch: 6 hours
  • Overcoating Interval: Minimum 24 hours; Maximum 3 months
  • Full cure after 8 days

Shelf life

  • Base: at least 24 months when stored cool and dry
  • Hardener: at least 36 months when stored cool and dry

Notes:

  • See ADDITIONAL DATA – Spreading rate and film thickness
  • See ADDITIONAL DATA – Curing time
  • See ADDITIONAL DATA – Overcoating intervals
  • Intermittent temperature resistance should be less than 5% of the time, and maximum 24 hours
  • Maximum temperature in table is for dry condition, please find “SYSTEM SPECIFICATION” for CUI condition
  • U.S. and Canada consist of 3 components (Post-add AMERCOAT 880 Glassflake additive with Amerlock 400)

RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES

  • Coating performance is proportional to the degree of surface preparation. Remove all loose paint, mill scale, and rust. Surface must be dimensionally stable, dry, clean and free of grease, oil, and other foreign materials.

Carbon steel

  • For immersion service: blast to ISO-Sa2½ (SSPC SP-10), profile 40–75 µm (1.6–3.0 mils)
  • For atmospheric service: blast to ISO-Sa2½ or min. SSPC SP-6, or power tool clean SSPC SP-3 / SSPC SP-2, or UHP water jet SSPC SP WJ-2(L) / NACE WJ-2(L)

Concrete / Masonry

  • Remove contaminants per ASTM D4258
  • Abrade per ASTM D4259 to ICRI CSP 3 to 5
  • Amercoat 114 A may be used as pit filler.
  • Max recommended moisture transmission rate = 3 lbs/1000 ft²/24 hr (ASTM F1869 or ASTM D4263). Alternatively ASTM D4944 ≤ 4% moisture content.

Galvanized steel

  • Clean with detergent/emulsion cleaner.
  • Lightly abrasive blast per SSPC SP-16, profile 1.5–3.0 mils (38–75 µm).
  • 24-month weathered galvanizing can be coated after power washing.

Non-ferrous metals and stainless steel

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

Substrate temperature

  • During application/curing must be >10°C (50°F).
  • At least 3°C (5°F) above dew point.

SYSTEM SPECIFICATION

  • For insulated and non-insulated service: Apply direct to carbon steel or stainless steel up to 204°C (400°F).
  • System: One coat, 250 µm (10.0 mils) DFT.

Notes:

  • May apply 2 × 125 µm coats.
  • Do not exceed 400 µm (16.0 mils) total DFT.
  • Topcoat may be required under direct sunlight.
  • For carbon steel: ISO-Sa2½ or min. SSPC SP-6 recommended. For maintenance/repair: min. SSPC SP-15.
  • For hot application (66–150°C): see “HOT APPLY EPOXIES” info sheet.

INSTRUCTIONS FOR USE

  • Mixing ratio (by volume): base:hardener = 1:1
  • Product temperature >15°C (59°F) preferred
  • Add thinner only after mixing.
  • Pot life: 2 hours @ 20°C (68°F)

Air spray

  • Thinner: 21-06 or 91-92 (6–10%)
  • Nozzle: 1.5–2.0 mm
  • Pressure: 0.3–0.4 MPa (44–58 psi)

Airless spray

  • Thinner: 21-06 or 91-92 (0–5%)
  • Nozzle: 0.53–0.79 mm (0.021–0.031 in)
  • Pressure: 19–22.5 MPa (190–225 bar; 2756–3264 psi)

Brush/Roller

  • Touch-up only. Thinner 21-06/91-92.
  • Cleaning solvent: Thinner 90-53 or 90-58.

ADDITIONAL DATA

Spreading rate and film thickness

DFT Theoretical spreading rate
200 µm (8.0 mils) 4.4 m²/l (174 ft²/US gal)
750 µm (30.0 mils) 1.2 m²/l (47 ft²/US gal)

Overcoating interval (DFT ≤ 300 µm / 12.0 mils)

Overcoating with… Interval 10°C (50°F) 20°C (68°F) 30°C (86°F) 40°C (104°F)
Epoxy coatings Minimum 36 hrs 16 hrs 10 hrs 8 hrs
Maximum 3 months 3 months 3 months 1 month
Polyurethanes Minimum 36 hrs 16 hrs 10 hrs 8 hrs
Maximum 1 month 1 month 14 days 7 days

Notes: Surface must be dry and clean. Adequate ventilation required (Info Sheets 1433, 1434).


Curing time (DFT ≤ 300 µm / 12.0 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 8 days
30°C (86°F) 4 hrs 12 hrs 4 days

Pot life (at application viscosity)

Mixed product temp. Pot life
10°C (50°F) 3 hrs
20°C (68°F) 2 hrs
30°C (86°F) 1 hr

SAFETY PRECAUTIONS

  • For paint and thinners see Information Sheets 1430, 1431.
  • Solvent-borne paint: avoid inhalation and skin/eye contact.

WORLDWIDE AVAILABILITY

Product may vary per region to comply with laws. Alternative product data sheets may apply.


REFERENCES

  • Conversion Tables Info Sheet 1410
  • Explanation to Product Data Sheets 1411
  • Safety Indications 1430
  • Safety in Confined Spaces, Hazard Sheets 1431
  • Safe Working in Confined Spaces 1433
  • Ventilation Directives 1434
  • Cleaning Steel & Rust Removal 1490
  • Mineral Abrasives Spec 1491
  • Relative Humidity/Substrate Temp/Air Temp 1650

WARRANTY

PPG warrants product quality at manufacture; no other warranties implied.
Claims must be made in writing within 5 days of discovery and within shelf life/1 year.
Failure to notify bars recovery.


LIMITATIONS OF LIABILITY

PPG not liable for indirect, special, incidental, or consequential damages.
User must determine product suitability.
Variations in application may cause unsatisfactory results.
Current sheets maintained at www.ppgpmc.com.