SILTECH OP-40

TECHNICAL PRODUCT BULLETIN #S-6
USEPA, OEM REGULATIONS IMPLEMENTATION DIVISION
LISTING DATE: JUNE 29, 2012
“SILTECH OP-40”
LAST COMMUNICATION WITH MANUFACTURER: 3/14/2016
LAST ATTEMPT: 7/29/2021

I. NAME, BRAND, OR TRADEMARK
SILTECH OP-40 Type of Product: Surface Collecting Agent

II. NAME, ADDRESS, AND TELEPHONE NUMBER OF MANUFACTURER/CONTACT
Desmi, Inc. 1119 Cavalier Boulevard Chesapeake, VA 23323 Phone: updated information required E-mail: pla@desmi.com Website: https://www.desmi.com (Mr. Peter Lane)

III. NAME, ADDRESS, AND TELEPHONE NUMBER OF PRIMARY DISTRIBUTORS
Desmi, Inc. 1119 Cavalier Boulevard Chesapeake, VA 23323 Phone: updated information required E-mail: pla@desmi.com Website: https://www.desmi.com (Mr. Peter Lane)

IV. SPECIAL HANDLING AND WORKER PRECAUTIONS FOR STORAGE AND FIELD APPLICATION
1. Flammability: IMO – Non-Flammable; DOT – Non-Hazardous 2. Ventilation: Use with ventilation equal to unobstructed outdoors in a moderate breeze 3. Skin and eye contact; protective covering; treatment in case of contact: May produce eye irritation in some persons and produce eye damage 24 hours or more after instillation. May cause skin irritation after prolonged or repeated exposure. Avoid skin and clothing contact. If skin contact occurs, immediately wash with large amounts of soap and water (if possible). Remove any contaminated clothing and shoes. Launder before reusing. If irritation persists, seek medical assistance. For areas where contact is likely, wear long sleeve shirt, chemical resistant gloves, and chemical resistant goggles. 4.a. Maximum storage temperature: 120°F 4.b. Minimum storage temperature: -40°F 4.c. Optimum storage temperature range: 59°F to 77°F 4.d. Temperatures of phase separations and chemical changes: None

IV. SPECIAL HANDLING AND WORKER PRECAUTIONS FOR STORAGE AND FIELD APPLICATION

1. Flammability: IMO – Non-Flammable; DOT – Non-Hazardous
2. Ventilation: Use with ventilation equal to unobstructed outdoors in a moderate breeze
3. Skin and eye contact; protective covering; treatment in case of contact: May produce eye irritation in some persons and produce eye damage 24 hours or more after instillation. May cause skin irritation after prolonged or repeated exposure. Avoid skin and clothing contact. If skin contact occurs, immediately wash with large amounts of soap and water (if possible). Remove any contaminated clothing and shoes. Launder before reusing. If irritation persists, seek medical assistance. For areas where contact is likely, wear long sleeve shirt, chemical resistant gloves, and chemical resistant goggles.
4.a. Maximum storage temperature: 120°F
4.b. Minimum storage temperature: -40°F
4.c. Optimum storage temperature range: 59°F to 77°F
4.d. Temperatures of phase separations and chemical changes: None

V. SHELF LIFE
Minimum of three years in unopened container.

VI. RECOMMENDED APPLICATION PROCEDURE
1. Application Method: Spray on water around the perimeter of an oil slick using a pressurized backpack sprayer or aerial applicator. 2. Concentration/Application Rate: 6.4 U.S. gallons/mile (or 15L/km). 3. Conditions for Use: SILTECH OP-40 is designed to aid in situ burning of free oil in calm water with drift ice where fire boom would be ineffective. When sprayed on the water around the perimeter of an oil slick, SILTECH OP-40 will concentrate the oil to a thickness suitable for igniting a burn. It works in all water temperatures and salinities and works best with fluid petroleum that has not weathered significantly.

VI. RECOMMENDED APPLICATION PROCEDURE

1. Application Method: Spray on water around the perimeter of an oil slick using a pressurized backpack sprayer or aerial applicator.
2. Concentration/Application Rate: 6.4 U.S. gallons/mile (or 15L/km).
3. Conditions for Use: SILTECH OP-40 is designed to aid in situ burning of free oil in calm water with drift ice where fire boom would be ineffective. When sprayed on the water around the perimeter of an oil slick, SILTECH OP-40 will concentrate the oil to a thickness suitable for igniting a burn. It works in all water temperatures and salinities and works best with fluid petroleum that has not weathered significantly.

VII.TOXICITY AND EFFECTIVENESS

a. Toxicity:

Material Tested	Species	LC50 (ppm)
SILTECH OP-40	Menidia beryllina Mysidopsis bahia	3.33 96-hr 6.83 48-hr
No. 2 Fuel Oil	Menidia beryllina Mysidopsis bahia	40.50 96-hr 6.43 48-hr
SILTECH OP-40 & No. 2 Fuel Oil (1:10)	Menidia beryllina Mysidopsis bahia	9.70 96-hr 3.27 48-hr
Reference Toxicant (SDS)	Menidia beryllina Mysidopsis bahia	2.33 96-hr 8.68 48-hr

b. Effectiveness:
NA

VIII. MICROBIOLOGICAL ANALYSIS
NA

IX. PHYSICAL PROPERTIES
1. Flash Point: >180°F 2. Pour Point: -74.2 °F 3. Viscosity: 53 SUS at 100 °F 4. Specific Gravity: 0.98816 at 60°F 5. pH: 8.03 6. Surface Active Agents: CONFIDENTIAL 7. Solvents: None 8. Additives: None 9. Solubility in Water: Partly miscible

X. ANALYSIS FOR HEAVY METALS, CYANIDE, AND CHLORINATED HYDROCARBONS

Compound	Concentration (ppm)
Arsenic	ND
Cadmium	ND
Chromium	ND
Copper	ND
Lead	ND
Mercury	ND
Nickel	ND
Zinc	ND
Cyanide	ND
Chlorinated Pesticides	ND