DescriptionA reinforced composite for the repair and protection of metal surfaces. It ismachinable with excellent compressive strength, chemical resistance andcorrosion resistance. It is non-sagging, non-shrinking, and 100% solids.Color is Grey.

The ARC 10 is formulated for applications where machining to exacttolerances is required or desired. It is frequently used as an alternative toresurfacing by welding or flame spraying.

ARC 10 is easily mixed and applied and cures without the need of heat orpressure.

Composition - Polymer/Alloy CompositeMatrix - A two component, modified epoxy resin structure reacted with analiphatic curing agent.

Reinforcement - A proprietary blend of fine alloy particles and fibersdesigned to achieve a machinable, corrosion resistant surface.

Suggested Uses• Condensers • Bearing Housings• Cooling Water Pumps • Shafts• Flange Faces • Spline Repairs• Hydraulic Rams • Pitted Castings• Keyways • Heat Exchangers• Valve Bodies • Pump Volutes

Benefits • High build characteristic allows for single coat applications • Tough resin structure resists thermal-mechanical shock. • Outstanding adhesion insures reliable performance. • Can be easily machined to exact tolerances. • Convenient 4-1 mix ratio and verification of mix by color change. • Performs well under fluctuating chemical environments. • Resists compression setting.

PackagingMaterial is available in two package sizes: 250 g and 1 kg.Each package contains pre-measured containers (Part A and Part B). A mixing tool, applicator and application instructions are also included.

Chemical ResistanceTested at 21°C (70°F). Samples cured 5 days at 25°C (77°F).1 = Continuous long term immersion2 = Short term/intermittent immersion3 = Splash and spills with immediate cleanup, vapors4 = Not recommended for direct contact

Acids10% Hydrochloric 120% Hydrochloric 337% Hydrochloric 45% Nitric 3

10% Nitric 45% Phosphoric 1

20% Phosphoric 210% Sulfuric 120% Sulfuric 2

Alkalies & Bleaches28% Ammonium Hydroxide 110% Potassium Hydroxide 150% Potassium Hydroxide 150% Sodium Hydroxide 110% Sodium Hydroxide 16% Sodium Hypochlorite 1

PRODUCT DATA SHEET

ARC 10

Technical Data

Cured Density ----------------- 2,0 g/cc 125 lb/ cu. ft.

Compressive Strength (ASTM D 695) 930 kg/cm2 13,000 psi

Flexural Strength (ASTM D 790) 710 kg/cm2 10,000 psi

Flexural Modulus (ASTM D 790) 3,6 x 104 kg/cm2 5.1 x 105 psi

Tensile Strength (ASTM D 638) 280 kg/cm2 4,000 psi

Taber Wear Weight Loss (ASTM D 4060) (H-18/250 g/1000 cycles) 275 mg

Composite Rockwell Hardness (ASTM D 785) R105

Composite Shore D Durometer Hardness (ASTM D 2240) 86

Vertical Sag Resistanceat 21°C (70°F) and 6 mm (1/4") ----------------- No sag

Maximum Temperature ----------------- Wet Service 66°C 150°F(Dependent on service) ----------------- Dry Service 93°C 200°F

Other CompoundsBunker C 1Diesel Fuel 1Isopropyl Alcohol 1Kerosene 1Naphtha 2Salt Water 1Sewage 1Xylene 1Toluene 1

Surface PreparationProper surface preparation is critical to the long term performance of thisproduct. The exact requirements for surface preparation will vary with theseverity of the application, expected service life, and the initial substrateconditions.

Optimum preparation will provide a surface cleaned of all contaminantsand roughened to an angular profile between 75-125 microns (3 to 5 mils).This is normally achieved by initial cleaning, abrasive blasting to acleanliness of White Metal (SA3/SSPC - SP5) or Near White Metal(SA 2 1/2/SSPC SP10) followed by rinsing with an organic solvent whichevaporates leaving no film residue. Grinding to a rough surface profile, ormachining to a rough gramaphone cut, followed by rinsing with solvent isacceptable although a subsequent lowering in adhesion may result.

Mixing To facilitate mixing and application material temperatures should bebetween 21-32°C (70 - 90°F). Each kit is packaged to the proper mix ratio.If further proportioning is required the kit should be divided to the correctmix ratio.

Mix Ratio By Weight

A:B 4:1

With the enclosed mixing tool, add Part B to Part A. Mix for 1 minute. Shifta small portion of this mix back to Part B container and scrape the walls ofthis container to remove all traces of residue. Transfer all material back toPart A container and mix until the material is uniform in color and free ofstreaks. Immediately apply.

Working Time - Minutes10°C 25°C 43°C

50°F 77°F 110°F

250 g 75 40 25

1 kg 60 30 20The chart above defines the practical working time of ARC 10, starting from when mixing begins.

Application The ARC 10 is normally applied at a thickness between 3 mm - 9,5 mm(1/8"- 3/8"), however it may be applied at a minimum thickness of 1,5 mm(1/16"). Minimum application temperature is 10°C (50°F). Using a plasticapplicator or trowel press the material into the surface profile to completelywet out the surface and build to the required thickness. Once the materialis placed it may be smoothed using a variety of methods. Always applyand finish to desired contour within listed working times.

If required ARC 10 can be machined using a carbide tool bit once theproduct has cured to “Light Load” as described below. In certainapplications requiring additional support where machining is not required itmay be advantageous to either weld expanded metal onto the surfaceprior to preparing the surface or to impregnate nylon reinforcing mesh intothe composite while still wet.

The material may be overcoated with any of the ARC Polymer Composites.If it has cured to the point of “Light Load” as described below, the surfaceshould be roughened and rinsed with an organic solvent prior totopcoating. Prior to this point no additional surface preparation is requiredprovided that the surface has not been contaminated.

Coverage Based on a 3 mm (1/8") thickness:

250 g kit will cover 417 cm2 (61 in.2)1 kg kit will cover 1667 cm2 (244 in.2)

To calculate the kilograms required for a given application use theappropriate formula below:

2,0 x Area (m2) x Average Thickness (mm) = kg or4.7 x Area (ft2) x Average Thickness (inches) = kg

Curing Schedule10°C 16°C 25°C 32°C50°F 60°F 77°F 90°F

Tack Free 5 hrs 3 hrs 2 hrs 1 hr

Light Load 9 hrs 7 hrs 3.5 hrs 2.5 hrs

Full Load 48 hrs 36 hrs 20 hrs 16 hrs

Full Chemical 96 hrs 72 hrs 36 hrs 30 hrs

Clean Up ARC 10 cures to a solid mass in a short period of time. All clean upactivities must be carried out as soon as possible to prevent materialhardening onto the tools. Use commercial solvents (Acetone, Xylene,Alcohol, Methyl Ethyl Ketone) to clean tools immediately after use. Oncecured, the material would have to be abraded off.

Storage Store between 10°C (50°F) and 32°C (90°F). Excursions beyond this rangewhich may occur during shipping, are acceptable. The shelf life is twoyears in unopened containers.

Safety Before using any product, review the appropriate Material Safety DataSheet (MSDS) or Safety Sheet for your area. Follow standard confinedspace entry and work procedures, if appropriate.

Technical Data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. CHESTERTON CO. DISCLAIMS ALL WARRANTIES EXPRESSED, OR IMPLIED,INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR USE . LIABILITY, IF ANY, IS LIMITED TO PRODUCT REPLACEMENT ONLY.

MIDDLESEX INDUSTRIAL PARK, 225 FALLON ROAD STONEHAM, MASSACHUSETTS 02180-9101 USATEL: (617) 438-7000 – FAX: (617) 438-8971 – TELEX: 94-9417CABLE: CHESTERTON STONEHAM, MASS.© A.W.CHESTERTON CO., 1996. All rights reserved.® Registered trademark owned and licensed by

A.W.CHESTERTON CO. in USA and other countries. FORM NO. E77011 REV. 5/96