Product Specifications

Viscosity:	Flash Point:	Density (lb/gal):	Solid (% by weight):	Solid (% by volume):	Shelf Life (months):
Zahn #2 signature cup 18 sec at 77°F	-4°F (-20°C)	7.3	24%	16%	12

Product Description

Chemseal 550 is a single component nitrocellulose sealer that provides excellent sealing properties and very rapid dry. Chemseal 550 is an easy sanding sealer designed for the professional applicator who requires a rapid dry, easy sanding material. All nitrocellulose lacquers will yellow over time. This could become an issue if this product is used over white surfaces. This yellowing generally adds a warm patina when applied over most other colors and stains.

Recommended:  Architectural Woodwork Institute Nitrocellulose Lacquer System (8^th Ed).

Uses

Chemseal 550 is recommended for household furniture, millwork, decorative items as well as many other interior wood applications.

Environmental Data (as supplied)

VOC less exempt lb/gal:	VOC lb/gal:	VOC less exempt g/l:	VOC g/l:	VOC lb/lb Solid:	VHAPs lb/lb Solid:
<4.50	<2.10	<530	<255	<1.20	<0.3

Note:

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Application Data

Suggested Uses:	Mixing Ratio:	Pot Life:	Application Viscosity:	Reducer:	Retarder:	Clean-up Solvent:	Recommended Wet Film:	Coverage:
Wood Sealer	N/A	N/A	Zahn #2 signature cup 18 seconds	800-5500 for viscosity only	800-5742	800-5500	3 – 5 mils	Coverage is 265 sq. ft/gal at 1 mil dry and at 100% transfer efficiency. Coverage will vary depending on method of application or coating thickness.

Note:

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Surface Preparation

Substrate must be sanded using 120, 150 or 180 grit stearated paper prior to staining or coating. Chemseal 550 cannot be used on metal or old oil finishes. AkzoNobel recommends using 825-00XX or 825-09XX series stains or 824-50XX series waterborne stains.

General Information

Agitate material before use. Chemseal 550 must be agitated thoroughly at all times to ensure product consistency.

Apply at 3-5 mils wet on sanded substrate. Further coats may be applied after complete drying followed by sanding with 280/320 grit stearated paper. Appropriate topcoat is Chemlack 550 441-27XX.

Maximum film build of Chemseal 550 should not exceed 2 mils dry. Maximum film build of total coating system must not exceed 3 mils dry.

Chemseal 550 should not be used and dried at temperatures below 64°F or relative humidity above 65%.

THE CUSTOMER IS RESPONSIBLE FOR FOLLOWING THE RECOMMENDED APPLICATION PROCEDURES. FAILURE TO ADHERE TO THE RECOMMENDATIONS GIVEN IN THIS DATA SHEET WILL LIKELY RESULT IN UNSATISFACTORY FILM APPEARANCE OR FILM FAILURE. THE COMPLETE COATING SYSTEM SHOULD BE CHECKED FOR REQUIRED PROPERTIES PRIOR TO THE START-UP OF PRODUCTION.

Drying Times

Room Temperature (68°F)

Tack Free Time:	Dry to Sand:	Dry to Stack:
5 – 10 minutes	10 – 20 minutes	1 - 2 hours

Forced Drying Schedule (122°F)

Tack Free Time:	Dry to Sand:	Dry to Stack:
Flash off before entering oven	5 – 10 minutes	20 – 30 minutes

Note:

N/A

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Dry times are greatly affected by film build, porosity of substrate, air movement as well as heat and humidity. Temperatures are based on actual board temperature. This may vary depending on length of time for boards to reach these temperatures. Minimum curing temperatures of 64°F/18°C must be maintained throughout the curing cycle to achieve the film integrity as stated in product features.