Tectyl 891 Class 2
Tectyl 891 Class 2 Description:
Tectyl 891D Class II is a solvent cutback, firm film, black asphaltic corrosion preventive compound. Tectyl 891D Class II provides long term protection for metallic surfaces in indoor and outdoor exposure and during international shipments.
Tectyl 891 Class 2 Approvals:
* Tectyl 891D has been qualified by the Naval Sea Systems Command (NAVSEA) against the requirements of MIL-PRF-16173E (formerly MIL-C-16173D) Grade 1 Class II.
* NAVSEA has approved the Tectyl 891D Class II as a qualified product listing (QPL) for MIL-PRF-16173E Grade 1 Class II.
* Tectyl 891D Class II is approved under Military Specifications MIL-C-16173E (formerly MIL-C-16173D), MIL-PRF-16173E Grade 1, for Class II, and MIL-P-116J, Type P-1.
* Tectyl 891D MIL-PRF-16173E Grade 1 meets the requirements for NATO Code C-632
* Tectyl 891D meets the Mil-PRF 16173E Grade 1 specification of a hard film (175°F or 80°C minimum flow point of deposited film).
* Tectyl 891D per the requirements of MIL-PRF-16173E Grade 1 meets the hard film requirements for protection of metals when exposed for extended periods to outdoor weather conditions.
* Tectyl 891D per the requirements of MIL-PRF-16173E Grade 1 meets the hard film requirements for general purpose preservation, indoor or outdoor, with or without cover, for domestic and overseas shipment where a dry-to-touch film is required.
* Tectyl 891D per the requirements of MIL-PRF-16173E (formerly MIL-C-16173E) is sprayable at temperatures of 40°F (5°C).
* Tectyl 891D shall be permanently discernible on the preserved item after the application of the Tectyl 891. The Tectyl 891 color shall be black or brown per the requirements of MIL-PRF-16173E Grade 1 (formerly MIL-C-16173E).
* Tectyl 891D per MIL-PRF-16173E Grade 1 (formerly MIL-C-16173E) shall by dry in 4 hours to permit handling without injury to the film.
* Tectyl 891D per MIL-PRF-16173E (formerly MIL-C-16173E) has flash point above 100°F or 38°C.
* Tectyl 891D can be applied by spray, dip, flow coat and/or flush to the MIL-PRF-16173E dry film thickness requirement of 4 mils DFT or less.
* As required in MIL-PRF-16173E the Tectyl 891D must adhere to metal at 0°F (minus 18°C). There is no flaking of the Tectyl 891D dry film at this substrate temperature.
* Tectyl 891D meets the MIL-PRF-16173E performance specifications at 2.5 dry film thickness mils above the surface profile.
* Tectyl 891D per MIL-PRF-16173E exceeds the weatherometer testing requirements at 600 hours and 1200 hours per Federal Standard 141 Method 6151, ASTM G 23 and ASTM D 822 at the recommended dry film thickness.
* Tectyl 891D passes 864 hours in ASTM B-117 salt spray testing which exceeds the 336 hours required per MIL-PRF-16173E Grade 1 (formerly MIL-C-16173E).
* Tectyl 891D passes the 30 cycle removability testing after accelerated weathering per MIL-PRF-16173E Grade 1.
* Tectyl 891D passes immersion testing per the requirements of MIL-PRF-16173E section 220.127.116.11.
* Tectyl 891D Class II Volatile Organic Content (VOC) is in compliance with the requirements of MIL-PRF-16173E which states when tested per EPA Method 24 CFR CH 1 Part 60 Appendix A Tectyl 891D Class II shall not exceed 2.8 pounds/gallon (340 grams/liter).
Tectyl 891 Class 2 Laboratory Data Typical Properties:
* VOC is 2.5 pounds/gallon per MIL-PRF-16173E requirements.
* Density, Weight/Gallon = 7.6 lbs/gl.
* Specific Gravity = 0.91
* Recommended dry film thickness over metal profile is 2.8 mils.
* Theoretical coverage at the recommended dry film thickness = 344 sq.ft./gallon
* Non-volatile by weight = 66%.
* Non-volatile by volume = 60%.
* Dry to touch = 1.5 hours.
* Cured time = 24 hours.
Tectyl 891 Class 2 Surface Preparation:
The maximum performance of Tectyl 891D Class II can be achieved only when the metal surfaces to be protected are clean, dry and free of rust, oil and mill scale. Daubert Chemical Company recommends that the metal substrate temperature be 50-95°F (10-35°C) at the time of Tectyl 891D application.
Tectyl 891 Class 2 Application:
Tectyl 891D, Class II is formulated to be used as supplied. Ensure uniform consistency prior to use. Continued stirring of Tectyl 891D is generally not required. If the Tectyl 891D thickens due to cold storage or loss of solvent during use, contact Daubert Chemical Company. DO NOT THIN TECTYL 891D, Class II. Incorrect thinning will affect film build, dry time and Tectyl 891D performance. Daubert Chemical Company recommends that the ambient and Tectyl 891D temperature be 50-95°F (10-35°C) at time of application. Tectyl 891D, Class II can be spray or dip applied.
Tectyl 891 Class 2 Removal:
Tectyl 891D, Class II can be removed with Tectyl HPS solvent borne thinner, vapor degreasing, hot alkaline wash, or low pressure steam. Tectyl 891D, Class II can be removed from fabrics by normal dry cleaning procedures. Avoid the use of chlorinated or highly aromatic solvents when removing from painted surfaces, as these solvents may adversely affect paint.
Tectyl 891 Class 2 Storage:
Store Tectyl 891D, Class II at temperatures between 50-95°F (10-35°). Mild agitation of Tectyl 891D is recommended prior to use. INSERT Note:
Tectyl 891 Class 2 Caution:
Adequate ventilation is required for Tectyl 891D cure and to ensure against the formation of a combustible liquid. THE PARTIALLY CURED TECTYL 891D FILM SHOULD NOT BE EXPOSED TO INGITION SOURCES SUCH AS FLARES, FLAMES, SPARKS, EXCESSIVE HEAT, OR TORCHES. Refer to the Tectyl 891D Material Safety Data Sheet for additional handling and first aid information.
Tectyl 891 Class 2 Note:
The addition of any product over or under the Tectyl 891 is not recommended. The addition of additional coatings could result in chemical incompatibility, thus adversely affecting the performance of the Tectyl 891 stated in the lab data section. If a product other than Daubert Chemical Company’s Tectyl 891 is required, written authorization must be obtained from Daubert Chemical Company.