ZIRCAR Refractory Composites, Inc.            MATERIAL SAFETY DATASHEET

P.O. Box 489                                                                                                                        No.: MSDS-4

Florida, NY 10921                                                                   Date Revised: January 17, 2007




1. Product Identification



Trade Name:

Refractory Insulating Products

Chemical Name:




Calcium Silicate Insulation Board

Molecular Formula: CaSiO3


Types:                     ZIRCAL-95                   ZIRCAL-45



2. Composition / Information on Ingredients





Molecular Weight

CAS Number

Calcium Silicate




Calcium Metasilicate




Crystalline Silica







% by Weight


CaSiO3 (Calcium Metasilicate)








OSHA PEL as 8 hr TWA

5 mg/m3


10 mg/m3


EXPOSURE GUIDELINES: Calcium Metasilicate

OSHA PEL as 8 hr TWA

5 mg/m3


3 mg/m3



OSHA PEL as 8 hr TWA

0.1 mg/m3


0.1 mg/m3


3. Hazard Identification


TARGET ORGANS: Skin, eyes, and lungs.

Emergency Overview

CAUTION: Handling or machining of these products may produce respirable dust particles.  Dust may irritate eyes, skin respiratory tract.


Dust may cause irritation or soreness of throat and nose.

Eye Contact

Dust may cause temporary irritation or inflammation.

Skin Contact

May cause temporary dryness, irritation or rash.


Ingestion is unlikely.  May cause gastrointestinal disturbances.  Never induce vomiting without the advice of a physician.

Medical Conditions Aggravated by Exposure: Respiratory effects may be aggravated by smoking.  Pre-existing respiratory problems may be aggravated by dust.


4. First Aid Measures


Inhalation:   Remove to fresh air.  Rinse mouth to clear throat and expel liquid.  Blow nose to evacuate dust.  Consult a physician if irritation persists.

Eye Contact:   Do not rub eyes.  Keep hands or contaminated body parts away from eyes.  Remove contact lenses.  Flush with water.  If irritation persists, consult a physician.

Skin Contact:   Wash with soap and water.  For dryness, a skin cream may be helpful.  Do not apply anything to a rash.  Consult a physician if irritation persists.

Ingestion:   Do not induce vomiting without advice of a physician.  Seek medical attention.

Note to Physicians:   Aluminum Oxide dusts have caused no systemic or pathological problems.  The material is inert in the body.  Some individuals may experience allergic sensitivity reactions.  These are generally limited to mild occupational dermatitis.  Chronic inhalation may result in pleural plaques not associated with cancers.  Other effects principally derived from physical abrasion.

These products contain a small percentage of amorphous silica, however, not in sufficient quantity to produce free crystalline silica upon heating.  Dusts are therefore considered of the inert (nuisance) type and would not be expected to cause permanent damage to tissues on inhalation unless the exposure is severe.  Chronic exposure may produce radioplaque deposits in the pulmonary system with little or no parenchymal  reactions.  Some individuals may exhibit allergenic reactions ranging from asthmatic symptoms to benign pneumoconiosis.


5. Fire Fighting Measures


Materials are not combustible.


6. Accidental Release Measures


Spill Procedures:  Clean up procedures should minimize formation of airborne dusts.  Remove dust by vacuuming using HEPA filtration where possible. Liquid products (groups 3 & 4)  should be cleaned up with sponge, mop or cloth.

Release into Air:  Prevent release of airborne particulates where possible.  Not a regulated hazardous substance.  See section 8 for appropriate engineering controls.

Release into Water:  Release into water is not appropriate.  Not a regulated hazardous substance.  Landfill dusts and debris consistent with local regulations.


7. Handling and Storage


Storage:  These materials are stable and may be stored indefinitely.  Physical abrasion may produce small amounts of respirable dusts. Liquid and moist products (groups 4, 5, 7 and 8) should be stored in a sealed container. See precautions under section 8.

Normal Use:  Materials are stable under normal use and are not expected to produce significant hazardous by-products or emissions.

Machining and Cutting:  These materials may produce respirable and nuisance dusts when machined or cut.  See section 8 for exposure controls and personal protection during machining or installation procedures.

High Temperature Conditions:  Service significantly above the product design temperature may increase friability and the possibility of generating airborne fibers or particulates.  While not considered problematic during use, airborne fibers may complicate removal activities.  It is recommended that product use be carefully matched to design parameters.

After Service: Product removal must consider the possibility of usage above design temperatures.  See section 8 for appropriate respiratory protection during removal.


8. Exposure Controls


Engineering Controls:

Use dust suppression controls.  Local exhaust ventilation, point of generation dust collection, and/or down-draft work stations to minimize airborne dust generation are recommended when machining product.

Respiratory Protection:

Use appropriate protection pursuant to OSHA 29CFR 1910.134 and 29CFR 1926.103.  The following information is provided as a guide and reflects industry recommendations for control of dust.

PPE Other

Work clothes should be washed separately and the washing machine rinsed following use.  If possible, do not take work clothes home following machining or removal activities that produce significant amounts of dust.

Skin Protection

Wear gloves, head coverings, and full body clothing to prevent skin irritation.  Disposable clothing may be used.  Store work clothes and street clothes separately.

Eye Protection

Wear safety glasses or chemical goggles to prevent eye contact.  Do not wear contact lenses without goggles.  Do not get dust or liquids into eyes.  Have eye washing facilities available when using products.

These products are generally not hazardous during normal use.  These guidelines are provided for special circumstances involved in machining , use and or after service removals.

See section 7 for after service and section 13 for disposal recommendations.



9. Physical/Chemical Properties







Solubility in H2O

Groups 1 and 2

Rigid shapes






S. G. (g/cc)

Melting Point

Vapor Pressure

% Volatile


Groups 1 and 2


>1500oC (2732oF)


4-10% wt. organic




10. Stability and Reactivity


Stability:  Materials are stable.

Chemical Incompatibilities:   Powerful oxidizers; fluorine, chlorine trifluoride, manganese trioxide, oxygen difluoride, etc.

Hazardous Decomposition Products:   none.



11. Toxicology


See Section 3 (above) for refractory ceramic fiber information.

Epidemiology:  N/A

Toxicology: N/A



12. Ecological Information


Ecotoxicological Information:  No information available.

Distribution:  Calcium silicate and silica are naturally occurring and are widely distributed in igneous rock.  Secondary deposits in sedimentary rock may be found.

Chemical Fate Information:  The relative inertness of this material indicate that it may be highly persistent in the environment.  No information regarding any negative effects of this persistence has been noted.



13. Disposal Information


Disposal:  Consult with local, state and federal regulations.  In most cases these materials may be landfilled safely.

Hazardous Waste Classification:  Not listed as a RCRA Hazardous waste (40 CFR 261.31).  Not listed under SARA, CERCLA, or the Clean Air Act.

Empty Containers:  Empty containers may contain product dust or residue.  Do not re-use.

Disposal regulations vary.  Consult with all applicable regulations prior to disposal.



14. Transportation Information


Not regulated hazardous substances, no specific regulations apply.


15. Regulatory Information



California Proposition 65:  listed. On July 1, 1990 the state of California added "ceramic fibers (airborne fibers of respirable size) to the list of proposition 65 chemicals which are "known to cause cancer" by the state.  Proposition 65 lists all substances classified by the IARC as a 1, 2A or 2B carcinogen.

Additional warning and disposal regulations apply.

SARA Section 313 Supplier Notification: SARA Section 313 Supplier Notification: These products do not contain toxic chemicals subject to the reporting requirements of the Superfund and Reauthorization Act of 1986 section 313 (40 CFR 372).

WHMIS Status: This is a class D2A controlled product. based on an IARC 2B classification for ceramic fibers.  Calcium silicate (CAS number 1344-95-2) and Silica (crystalline) (CAS number 14806-60-7) are subject to disclosure under the hazardous products act.

SARA Note:

The listed substance requires reporting under Section 313 of SARA Title III of the Emergency Planning and Community Right to Know Act, annually if above the de Minimus Concentration and threshold quantity.



16. Other


The information contained herein is based on data considered to be accurate as of the preparation or revision date.  It is provided in good faith and in compliance with state and federal regulations.  No warranty or representation, express or implied is made as to the accuracy or completeness of this information.  Other national, state and/or local regulations may apply.