Chartek 8 Basic Installation Instructions

(For full detailed information refer to the current Chartek Application Manual)

A. Steel Surface Preparation and Primer Application

1. Clean surfaces of dirt, oil and grease to required standard, generally SSPC-SP1.
2. Blast clean to required standard, generally ISO 8501-1 Sa 2½ or SSPC-SP10, with 50 to 75 microns (2 to 3 mils) blast profile.
3. Where primer is required, only an International Paint qualified primer system should be used.
4. Check ambient environmental conditions to ensure the air and steel temperatures and relative humidity are in accordance
with the primer manufacturer’s requirements.
5. Prime surfaces ensuring primer is kept within specified thickness, generally 50 to 75 microns (2 to 3 mils) with maximum of
100 microns (4 mils) at overlap areas, to avoid over thickness of primer.
B. Mesh Reinforcement Using HK-1TM Hybrid Carbon and Glass Fibre Mesh System
1. HK-1 Mesh is required where specified thickness is greater than 7.2mm (283 mils); please refer to Chartek Application
Manual for details.
2. Firstly, cut HK-1 mesh to required size.
3. Ensure that straight carbon (black) fibre is parallel to flange edges and the hollow section axis.
4. Beams and columns with webs larger than 250mm (10”) deep must be meshed.
5. For hollow sections mesh should be wrapped around the member for 100% coverage.
6. Apply mesh into wet Chartek at approximately mid film thickness and roll thoroughly into Chartek with short nap roller lightly
dampen with PMA solvent (International Paint’s GTA123 or equivalent).
7. Overlap adjacent mesh pieces by a minimum of 50mm (2”)
8. After installing HK-1, spray a light coat of Chartek over the mesh to seal the surface or continue to build up the next full layer
of Chartek thickness.
9. Only use International Paint’s HK-1 hybrid carbon and glass fibre mesh.
C. Application of Chartek Using Approved Heated Plural Airless Spray Equipment
1. Ensure ambient environmental conditions are within following parameters: Minimum air temperature 10°C (50°F); maximum
relative humidity 85%; surface temperature at least 3°C (5°F) above dew point temperature.
2. Check surface for cleanliness and that primer is correct thickness and sufficiently cured.
3. Ensure surfaces not to be coated with Chartek are suitably masked and protected.
4. Check following parameters on the heated plural spray machine:
Parameter Part A Part B
Storage tank temperature: Max. 60°C (140°F) Max. 50°C (122°F)
In-line heater temperature: 55 to 65°C (131 to 149°F) 45 to 55°C (113 to 131°F)
Storage tank pressures 5.5 bar (80 psi) 2.72 bar (40 psi)
Tank stirrer speed 10rpm minimum 15rpm minimum
Mix ratio of 2.5:1 (acceptable range 2.37 to 2.61:1) 70 to72% 30 to 28%
Hose heater temperature: 55 to 65°C (131 to 149F)
Gun exit temperature: 50-55°C (122-131°F)
Displacement pump pressure: 175 to 240 bar (2500-3500 psi)
Spray tip sizes: 0.035-0.041”
5. Spray first coat and, if required, trowel to thoroughly wet surface.
6. Install HK-1 mesh reinforcement, if required, at mid film (see section B above)
7. Build up thickness uniformly, using short nap rollers lightly dampened with PMA solvent (International Paint’s GTA123 or
equivalent) to remove trowel marks and achieve uniform finish and thickness.
8. Surface finish of Chartek to be in accordance with client’s required specification.
D. Application of Chartek Using Approved Single Component Airless Spray Equipment
1. Follow steps C1, C2 and C3 (see above).
2. Check following parameters for airless equipment:
(a) Graco Premier (or equivalent) mounted on a power ram with a follower or induction material feed plate.
(b) Pump compression ratio from 68:1 to 74:1 fitted with check valve to eliminate spray fan fluctuation.
(c) ¾” ID x 12” long in-line static mixer.
3
(d) /8” ID fluid line 15 to 20 m (50 to 65 ft.) long.
(e) ½” ID whip line 4.5 m (15 ft.) long.
(f) High pressure airless spray gun with 0.035-0.041” spray tips.
3. Mix Chartek Parts A and B as follows:
(a) Add a maximum of 1 litre (0.25 US gallons) PMA solvent (International Paint’s GTA123 or equivalent) to Part A and mix
to smooth consistency.
(b) Pour Part B into Part A container, scraping the sides of Part B container to empty it completely.
(c) Mix thoroughly until a smooth texture and uniform colour are achieved.
4. Follow steps C5 to C8 (see above).
E. Precautions
1. Chartek should be topcoated with qualified topcoat when sufficiently cured, ensuring the surface is clean and dry.
2. Only trained and qualified personnel should install Chartek.
3. Keep yourselves clean (hot water and soap is best) and always use suitable personal protective equipment.
4. Keep equipment clean, well maintained and ensure all hoses and fittings are rated to the high pressures of the pump.
5. Contact International Paint’s Technical Service for any further information or assistance.
UK: +44 (0) 7785 725666 USA: +1 832 309 2560 Web: www.chartek.com
©International Paint Limited, 2006
This document and its contents are the copyright of International Paint Limited and may not be
reproduced in whole or in part without the express permission of International Paint Limited.
 Chartek 8 - Basic Installation Checklist
1. Clean surface 2. Prime surface* 3. Inspect

Clean and degrease to

SSPC-SP1, blast surface
to SSPC-SP10 or ISO Record QA details.
8501-1 Sa 2½, profile 50- Apply 50-75 microns (2-3 mils) i.e. weather, blast profile,
75 microns (2-3 mils) of qualified primer* type of primer, etc.

4. Wetting coat of Chartek 5. If HK-1 mesh required, build up to

mesh depth (mid film thickness)

Apply typically 2-3mm (75-115 mils). HK-1 mesh required where specified
Ensure surface is fully wetted, thickness is greater than 7.2mm (283 mils)
trowel if required. Installed at approximate mid film

6. Inspect for thickness and uniformity 7. Install HK-1 mesh, if required,

in wet Chartek

Wet gauge Ensure correct mesh overlaps,

minimum 50mm (2”), in accordance
with Chartek Application Manual

8. Cover mesh with Chartek 9. Build up to final thickness

10. Final inspection for 11. Document 12. Finish with recommended
uniformity of thickness topcoat as required. Record
measurements
type and QA details

Wet gauge or drill

For full details refer to the current * For qualified primers and alternative
Chartek Application Manual. topcoats, please contact International Paint

20 March 2006_Rev.1
©International Paint Limited, 2006
This document and its contents are the copyright of International Paint Limited and may not be reproduced in whole or in part without the express permission of
International Paint Limited