Scratch-Coat

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SCRATCH-COAT 800 Corporate Offices TROWEL OR SQUEEGEE APPLIED, 1818 Miller Parkway VINYL ESTER FILL MATERIAL FOR Streetsboro, OH 44241 CONCRETE AND PITTED STEEL 330-562-1970 APPLICATIONS. 330-562-7638 FAX www.dudick.com

FEATURES ESTIMATING QUANTITIES AND ORDER BILL OF MATERIAL Easy to Apply Suitable for Steel & Concrete Substrates APPROXIMATE SQUARE FEET PER GALLON RECOMMENDED APPLICATIONS Scratch-Coat 800 Primer 27 150-200 ft.² Concrete Substrates Scratch Coat 125-150 ft.² Pitted Steel S-10 Solvent 500 ft.² *Quantities shown are for estimating purposes only. PHYSICAL PROPERTIES Actual material requirements can be more accurately determined after abrasive blasting and examination of the Adhesion to Concrete Cohesive Failure surface profile. ASTM D-4541 of Concrete

During manufacturing, some air entrapment occurs in Adhesion to Steel 1,500 PSI the more viscous lining systems. During storage and ASTM D-4541 transportation, settling can occur when entrapped air

escapes this mix indicating less than 100% volumetric SPECIFICATIONS fill. All products are priced and sold by weight and

not necessarily by volume Scratch-Coat 800 shall be a vinyl ester based fill material for concrete and pitted steel applications as APPLICATION INSTRUCTIONS manufactured by Dudick, Inc. Material shall be trowel or squeegee applied in accordance with the manufacturer’s SURFACE PREPARATION recommended practices.

Metal: Abrasive blast to a white metal finish and a 3.0 THE SCRATCH-COAT 800 SYSTEM mils minimum profile according to SSPC SP 5 or NACE

# 1. Scratch-Coat 800 uses a primer and a vinyl ester resin with inert mineral fillers to achieve a smooth Concrete: Refer to specific product bulletin where non-slumping fill material. Scratch-Coat 800 is being used for concrete surface

preparation requirements. The system is formulated to improve the integrity and continuity of a prepared metal or concrete substrate prior APPLICATION SPECIFICATIONS to the application of a Dudick polyester or vinyl ester lining or coating system. Substrate temperature for both concrete and metal must

be between 50ºF and 110ºF.

Relative humidity must not exceed 90%.

Substrate temperature must be 5ºF above the Dew Point.

1 Hardener Amount / Gallon Resin Application of Scratch-Coat 800 in direct sunlight may lead to blistering, pinholes, or wrinkling due to Scratch-Coat 800 outgassing of air in the concrete and high substrate Hardener Substrate Primer Scratch- temperatures. Double priming, shading, or evening Temperature 27 Coat 800 application may be required. Consult a Dudick PH-1 50ºF - 60º F 4-5 oz. 4-5 oz. representative. PH-1 60ºF - 70º F 3-4 oz. 3-4 oz. PH-1 70ºF - 90º F 2-3 oz. 2-3 oz. In order to prevent curing problems with styrenated products, air movement and/or ventilation must be The Pot Life of the mixed materials will depend on the maintained not only during application but also after temperature. To avoid material waste do not mix more application until the system has totally cured. This than can be used according to the following table: will prevent high concentration of styrene inhibiting/retarding the cure of the system. Temperature POT LIFE Scratch Coat 800 Cure Cycle Primer 27/ Scratch-Coat 800 TEMPERATURE RECOAT CURE TIME TIME 50ºF 60 min. MIN. MAX. 75ºF 45 min. 50ºF 8 hrs. 8 days 96 Hrs. 90ºF 30 min. 75ºF 3 hrs. 5 days 24 Hrs.

90ºF 1.5 hrs. 3 days 16 Hrs. SCRATCH COAT 800

PRIMER 27 If these recoat times are exceeded, consult a Dudick representative; sanding or abrasive blasting may be Add the correct amount of PH-1 Hardener for each required before the next coat. Recoat times are gallon of Primer 27 and mix thoroughly for 1-2 minutes. dramatically reduced when Scratch-Coat 800 is exposed to direct sunlight. Prime all metal or concrete surfaces at 3-4 mils WFT using a brush, spray, or roller. The scratch-coat may be CLEANING applied over tacky primer. Do not allow the primer to puddle. Use S-10 Cleaning Solvent to clean tools and equipment. DO NOT USE ACETONE. SCRATCH-COAT SHIPPING Using the correct amount of PH- 1 Hardener for each gallon of Scratch-Coat 800 liquid, mix for 1-2 minutes. Refer to Material Safety Data Sheets. Then gradually add the G-2 Filler to achieve a trowelable, putty consistency. STORAGE

Warning: All Dudick products classified by DOT with Through the Scratch-Coat 800 is a trowel or squeegee either white, yellow or red labels must not be mixed or applied material, it is not intended to be utilized as a stored together as an explosive reaction may occur. surface “coating”. The compound should be spread

firmly, forcing the material into deep voids and pinholes. All products should be stored in a cool, dry area away Use the trowel blade to scrape excess material from flat, from open flames, sparks or other hazards. void-free surfaces. The consistency of the mortar

provides excellent non-slumping characteristics for When properly stored in their original, unopened vertical or overhead use. This normally allows completion of the surface preparation following only one containers at 50°F-75°F, Primer 27 and Scratch-Coat application. 800 will have a shelf life of three- months or less. At temperatures above 75°F, two months or less. PH-1 Allow the Scratch-Coat 800 to cure until firm before Hardener will have a six-month shelf life at 50°F-75°F. proceeding with the specified basecoat and topcoat. Exposure to excessive heat may cause premature gelling, Excessive trowel marks and/or rough areas should be reduce working time and shelf life. sanded smooth. 2

SAFETY • In case of eye contact, flush with water for at least 15 M.S.D.S.: Material Safety Data Sheets must always be minutes and consult a physician. read before using products. Scratch-Coat 800 is intended for application by experienced, professional • If swallowed, do not induce vomiting; call a personnel. Dudick, Inc. can supply supervision to help physician immediately. determine that the surface has been properly prepared, the ingredients correctly mixed, and the materials properly NOTE: Dudick, Inc. (“Dudick”) warrants all goods of its and safely applied. manufacture to be as represented in its catalogs and that the manufacture of its products by its employees or sub- If Scratch-Coat-800 is to be applied by your own contractors shall be performed in a workmanlike manner. personnel or by a third party contractor, please be sure Dudick’s sole obligation under this warranty shall be to that they are aware of the following safety precautions: replace any material which its examination shall disclose to be defective. Dudick makes no warranty concerning • Exposure to resins and hardeners through direct skin the suitability of its product for application to any surface, contact and/or inhalation may cause severe dermatitis it being understood that the goods have been selected and reactions in some people. Cleanliness of the skin and the application ordered by the Purchaser. DUDICK, INC. clothing is critical and must be of paramount MAKES NO WARRANTY, EXPRESS OR IMPLIED, concern. THAT THE GOODS SHALL BE MERCHANTABLE OR THAT THE GOODS ARE FIT FOR ANY • Fumes are flammable and heavier than air. Proper PARTICULAR PURPOSE. THE WARRANTY OF ventilation should be maintained to minimize REPAIR OR REPLACEMENT SET FORTH HEREIN IS breathing of concentrated fumes. EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES ARISING BY LAW OR OTHERWISE; • Suitable respirators should be used during AND DUDICK INC. SHALL NOT BE LIABLE FOR application. INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOST PROFITS, • Safety glasses, gloves, and suitable protective DOWN TIME, DAMAGES TO PROPERTY OF THE clothing must be worn at all times during application. PURCHASER OR OTHER PERSONS, OR DAMAGES FOR WHICH THE PURCHASER MAY BE LIABLE • If contact with hardeners occurs, remove any TO OTHER PERSONS, WHETHER OR NOT clothing involved and flush the skin with flowing OCCASIONED BY DUDICK’S NEGLIGENCE. This water. Discard the clothing. Do not attempt to wash warranty shall not be extended, altered or varied except and reuse it. Scratch-Coat 800 liquid can be by written instrument signed by Dudick and Purchaser. removed with S-10 Cleaning Solvent, MEK, or lacquer thinner. DO NOT USE ACETONE. 5/10/10

• Keep open flames and sparks away from the area where materials are being mixed and applied.

• If a rash occurs, remove the individual from the work area and seek a physician’s care for dermatitis.