Material Name: Material Safety Data
Uncured Fiber Glass Wool Insulation with Silicone Sheet ID: 1007

Section 1 - Chemical Product and Company Identification

Product Name Uncured Fiber Glass Wool Insulation with Silicone
CAS# Mixture/None Assigned
Generic Name Uncured Fiber Glass Wool
Formula Mixture
Chemical Name: Mixture
Hazard Label FG-02-FA
Manufacturer Information
Johns Manville Telephone: 303-978-2000 8:00AM-5:00PM M-F
Performance Materials Division Internet Address: http://www.jm.com
P.O. Box 5108 Emergency: 800-424-9300 (Chemtrec, In English)
Denver, CO 80127
Trade Names: Microlite? AA Uncured Silicone

Section 2 - Composition / Information on Ingredients
CAS # Component Percent
65997-17-3 Fiber Glass Wool 85
68037-90-1 Silicone resin (uncured), with phenyl, propyl silicone 15

Additional Component Information
Average fiber diameter range is 3.0-6.5 x10-5 inches.
Section 3 - Hazards Identification
Emergency Overview

APPEARANCE AND ODOR: White to pinkish fibrous glass blanket. Microlite AA uncured is pink; turns white as it cures. No
significant odor.

Inhalation of excessive amounts of dust from the product may cause temporary upper respiratory irritation and/or congestion--
remove individual to fresh air.

Inhalation of gases released during heat treatment or curing of this product may cause temporary upper respiratory irritation
and/or congestion--remove affected individuals to fresh air.

Potential Health Effects
Summary
Breathing dust from this product may cause a scratchy throat, congestion, and slight coughing. Getting dust or fibers on the
skin, or in the eyes may cause itching, rash, or redness. Additional health and safety information is provided in Section 11 of
this material safety data sheet.
Inhalation
Irritation of the upper respiratory tract (scratchy throat), coughing, and congestion may occur in extreme exposures.
Skin
Temporary irritation (itching) or redness may occur. Skin irritation may result from contact with vapors, or prolonged contact
with uncured product.
Ingestion
This product is not intended to be ingested (eaten). If ingested, it may cause temporary irritation to the gastrointestinal
(digestive) tract.
Eyes
Temporary irritation (itching) or redness may occur. Exposure to vapors generated during the curing process may cause
irritation and burning in eyes.
Ears
Temporary irritation (itching) or redness may occur.

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 Material Name: Uncured Fiber Glass Wool Insulation with Silicone Material Safety Data
Sheet ID: 1007

Primary Routes of Entry (Exposure)
Inhalation (breathing dust, fibers, or vapors), skin, and eye contact.
Target Organs
Nose (nasal passages), throat, lungs, skin, eyes.
Medical Conditions Aggravated by Exposure
Pre-existing chronic respiratory, skin, or eye diseases or conditions.
Section 4 - First Aid Measures
First Aid: Inhalation
Remove to fresh air. Drink water to clear throat, and blow nose to remove dust.
First Aid: Skin
Wash gently with soap and warm water to remove dust. Wash hands before eating or using the restroom.
First Aid: Ingestion
Product is not intended to be ingested or eaten. If this product is ingested, irritation of the gastrointestinal (GI) tract may occur,
and should be treated symptomatically. Rinse mouth with water to remove fibers, and drink plenty of water to help reduce the
irritation. No chronic effects are expected following ingestion.
First Aid: Eyes
Do not rub or scratch your eyes. Dust particles may cause the eye to be scratched. Flush eyes with large amounts of water for
5-15 minutes. If irritation persists, contact a medical professional.
First Aid: Ears
Wash exposed skin with soap and warm water. If irritation develops in the inner ear, seek medical attention.
First Aid: Notes to Physician
Irritating gases may be released under conditions of high heat or humidity. At high levels, these could cause severe upper
respiratory and eye irritation. Treatment should be directed toward removing the source of irritation with symptomatic treatment
as necessary.
Section 5 - Fire Fighting Measures
Flash Point: Not applicable Method Used: Not applicable
Upper Flammable Limit (UFL): Not applicable Lower Flammable Limit (LFL): Not applicable
Auto Ignition: Not determined Flammability Classification: Not determined
Rate of Burning: Not determined
General Fire Hazards
There is no potential for spontaneous fire or explosion.
Extinguishing Media
Carbon dioxide (CO2), water, water fog, dry chemical.
Fire Fighting Equipment/Instructions
No special procedures are expected to be necessary for this product. Normal fire fighting procedures should be followed to
avoid inhalation of smoke and gases.
Section 6 - Accidental Release Measures
Containment Procedures
Use protective equipment as described in Section 8 of this material safety data sheet when handling uncontained material.
Pick up large pieces. Vacuum dusts. If sweeping is necessary, use a dust suppressant such as water. Do not dry sweep dust
accumulation or use compressed air for clean-up. These procedures will help to minimize potential exposures.
Clean-Up Procedures
Avoid the generation of dusts during clean-up.
Section 7 - Handling and Storage
Handling Procedures
Use protective equipment as described in Section 8 of this material safety data sheet when handling uncontained material.
Storage Procedures
Warehouse storage should be in accordance with package directions, if any. Material should be kept clean, dry, and protected
from moisture. Storage of uncured fiber glass in hot, unventilated warehouse can result in the release and accumulation of
highly irritating gases.




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 Material Name: Uncured Fiber Glass Wool Insulation with Silicone Material Safety Data
Sheet ID: 1007

Section 8 - Exposure Controls / Personal Protection
Exposure Guidelines
A: General Product Information
Glass wool fiber, OSHA voluntary Health and Safety Partnership Program (HSPP): 1 f/cc TWA for fibers longer than 5 ??m with
a diameter less than 3 ??m.
B: Component Exposure Limits
Fiber Glass Wool (65997-17-3)
ACGIH: 1 fiber/cm3 TWA (respirable fibers: length > 5 ??m, aspect ratio equal to or greater than 3:1, as
determined by the membrane filter method at 400-450X magnification (4-mm objective), using
phase-contrast illumination.); 5 mg/m3 TWA (inhalable fraction)

PERSONAL PROTECTIVE EQUIPMENT
Personal Protective Equipment: Eyes/Face
Safety goggles are recommended to keep dust, fibers, gases, and vapors out of the eyes.
Personal Protective Equipment: Ears
Use ear protection (earplugs, hood, or earmuffs) to prevent airborne dust or fibers from entering the ear, if necessary.
Personal Protective Equipment: Skin
During prolonged contact with wet, uncured product, impervious gloves (butyl rubber and vitron-fluorocarbon rubber) should be
worn to prevent excessive skin contact. Barrier creams may help reduce skin contact and irritation caused by fiber glass, but
may be ineffective against formaldehyde vapors that may be released during curing.
Personal Protective Equipment: Respiratory
A respirator should be used if ventilation is unavailable, or is inadequate for keeping dust and fiber levels below the applicable
exposure limits. In those cases, use a NIOSH-certified disposable or reusable particulate respirator with an efficiency rating of
N95 or higher (under 42 CFR 84) when working with this product. For exposures up to five times the established exposure
limits use a quarter-mask respirator, rated N95 or higher; and for exposures up to ten times the established exposure limits
use a half-mask respirator (e.g., MSA's DM-11, Racal's Delta N95, 3M's 8210), rated N95 or higher. Operations such as
sawing, blowing, tear out, and spraying may generate airborne fiber concentrations requiring a higher level of respiratory
protection. For exposures up to 50 times the established exposure limits use a full-face respirator, rated N99 or higher.
Ventilation
In fixed manufacturing settings, local exhaust ventilation should be provided at areas of cutting to remove airborne dust and
fibers. General dilution ventilation should be provided as necessary to keep airborne dust and fibers below the applicable
exposure limits and guidelines. The need for ventilation systems should be evaluated by a professional industrial hygienist,
while the design of specific ventilation systems should be conducted by a professional engineer.
Personal Protective Equipment: General
Wear a cap, a loose-fitting, long-sleeved shirt and long pants to protect skin from irritation. Exposed skin areas should be
washed with soap and warm water after handling or working with fiber glass. Clothing should be washed separately from other
clothes, and the washer should be rinsed thoroughly (run empty for a complete wash cycle). This will reduce the chances of
fiber glass being transferred to other clothing.
Section 9 - Physical & Chemical Properties
Appearance: Odor:
Fibrous glass blanket, pinkish color No significant odor
Physical State: pH:
Solid Not applicable
Vapor Pressure: Vapor Density:
Not applicable Not applicable
Boiling Point: Melting Point:
Not applicable >704oC/1300oF
Solubility (H2O): Specific Gravity:
Nil Variable
Freezing Point: Evaporation Rate:
Not applicable Not applicable
Percent Volatile: VOC:
0 Not applicable

Section 10 - Chemical Stability & Reactivity Information
Chemical Stability
This is a stable material.
Hazardous Decomposition
The decomposition products from this material are those that would be expected from any organic (carbon-containing)
material, and are mainly derived from pyrolysis, or burning, of the resin. These decomposition products may include carbon
monoxide, carbon dioxide, carbon particles, and traces of hydrogen cyanide.

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 Material Name: Uncured Fiber Glass Wool Insulation with Silicone Material Safety Data
Sheet ID: 1007


Formaldehyde gas is a possible decomposition product that may be released from this product during customer
manufacturing. Formaldehyde is irritating to the eyes and respiratory system and is a known human carcinogen.
Formaldehyde may cause skin or respiratory sensitization (allergy).
Hazardous Polymerization
Will not occur.
Section 11 - Toxicological Information
Acute Toxicity
A: General Product Information
Dust from this product is a mechanical irritant, which means that it may cause temporary irritation or scratchiness of the throat,
and/or itching of the eyes and skin.

Gases released under conditions of high heat and humidity can cause severe eye and respiratory irritation.
B: Component Analysis - LD50/LC50
No LD50/LC50's are available for this product's components.
Carcinogenicity
A: General Product Information
The Occupational Safety and Health Administration (OSHA), National Toxicology Program (NTP), International Agency for
Research on Cancer (IARC), and American Conference of Governmental Industrial Hygienists (ACGIH) have not classified
this product as a carcinogen.
B: Component Carcinogenicity
Fiber Glass Wool (65997-17-3)
ACGIH: A4 - Not Classifiable as a Human Carcinogen
IARC: Group 3 - Not Classifiable (IARC Monograph 43, 1988; Monograph 81, 2002)

Chronic Toxicity
Fiber Glass Wool: In October 2001, IARC classified fiber glass wool as Group 3, "not classifiable as to its carcinogenicity to
humans." The 2001 decision was based on current human and animal research that shows no association between inhalation
exposure to dust from fiber glass wool and the development of respiratory disease. This is a reversal of the IARC finding in
1987 of a Group 2B designation (possibly carcinogenic to humans) based on earlier studies in which animals were injected
with large quantities of fiber glass. NTP and ACGIH have not yet reviewed the IARC reclassification or the most current fiber
glass health research; at this time, both agencies continue to classify glass wool based on the earlier animal injection studies.
Section 12 - Ecological Information
Ecotoxicity
A: General Product Information
No data available for this product.
B: Component Analysis - Ecotoxicity - Aquatic Toxicity
No ecotoxicity data are available for this product's components.
Section 13 - Disposal Considerations
US EPA Waste Number & Descriptions
A: General Product Information
Cure materials prior to disposal to minimize residual resin content. After curing, comply with applicable federal, state, and
local regulations for disposal of fiber glass products. If you are unsure of the regulations, contact your local Public Health
Department, or the local office of the Environmental Protection Agency (EPA).
B: Component Waste Numbers
No EPA Waste Numbers are applicable for this product's components.
Disposal Instructions
Dispose of waste material according to Local, State, Federal, and Provincial Environmental Regulations.
Section 14 - Transportation Information
Shipping Name: This product is not classified as a hazardous material for transport.




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 Material Name: Uncured Fiber Glass Wool Insulation with Silicone Material Safety Data
Sheet ID: 1007

Section 15 - Regulatory Information
US Federal Regulations
A: General Product Information
SARA 311 Status. The following SARA 311 designations apply to this product: Immediate (acute) health hazard. Delayed
(chronic) health hazard.
B: Component Analysis
None of this products components are listed under SARA Section 302 (40 CFR 355 Appendix A), SARA Section 313 (40 CF 372.65), or CERCLA (40 CFR 302.4).
State Regulations
A: General Product Information
Other state regulations may apply. Check individual state requirements.
B: Component Analysis - State
The following components appear on one or more of the following state hazardous substances lists:
Component CAS # CA FL MA MN NJ PA
Fiber Glass Wool 65997-17-3 No No No Yes No No
A: TSCA Status
This product and its components are listed on the TSCA 8(b) inventory.

None of the components listed in this product are listed on the TSCA Export Notification 12(b) list.
B: Component Analysis - Inventory
Component CAS # TSCA DSL EINECS
Fiber Glass Wool 65997-17-3 Yes Yes Yes
Silicone resin (uncured), with phenyl, propyl silicone 68037-90-1 Yes Yes No

Component Analysis - WHMIS IDL
No components are listed in the WHMIS IDL.
Section 16 - Other Information
Other Information
Prepared for:
Johns Manville
Performance Materials Division
P.O. Box 5108
Denver, CO USA 80217-5108

Prepared by:
Johns Manville Product Stewardship
P.O. Box 625005
Littleton, CO USA 80162-5005

The information herein is presented in good faith and believed to be accurate as of the effective date given. However, no
warranty, expressed or implied, is given. It is the buyer's responsibility to ensure that its activities comply with Federal, State or
provincial, and local laws.

Date MSDS # Reason
08/01/00 1007-1.0000 New MSDS authoring system.
01/08/01 1007-1.010 Ecotoxicity update.
12/16/01 1007-2.0000 Update Sections 3, 11 & 15 for IARC 2001 re-classification of fiber glass wool to Group 3, not
classifiable as to carcinogenicity to humans.
02/27/02 1007-2.0001 Update Sect. 3 & 9, colors.
05/01/03 1007-2.0002 Sect. 2 & 9, corrected colors.
11/26/03 1007-2.0003 Section 16 division change from OEM to PM
07/02/04 1007-2.0004 Sect. 11 formaldehyde IARC update from 2A to 1. Sect 1 Label ID edit.
10/05/05 1007-2.0005 Section 2 - removed formaldehyde from composition. Formaldehyde is not an intentionally
added ingredient - it is a possible decomposition product during the customer's manufacturing
process. Updated Section 10, Decomposition to include formaldehyde info.
This is the end of MSDS # 1007
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POLY(PHENYL-PROPYLSILESQUIOXANE)