Health and Safety Recommendations for TRADECO HL 3.5 from St Astier

Product and Manufacturer Identification


Chemical name No. EINECS No. CAS Classification Concentration or
concentration range
Calcium hydroxide 215-137-3 1305-62-0 Xi R 41 ≥ 3%
Hydraulic binder 266-043-4 65997-15-1 Xi R36/37/38-43 ≥ 20%


Risk symbol

Principal risks for people and the environment







  • Hydraulic lime is irritant for eyes, respiratory track and mucous membranes
  • Risk of severe eye damage in cases of splashes of powder or wet mortar in the eyes
  • Once hydrated, TRADECO increases alcalinity and therefore can irritate or dry the skin
  • In cases of significant ingestion the product is caustic for the digestive tract. It can cause burning of the mouth, esophagus and stomac
  • The product does not present particular risks for the environment subject to the recommendations in section XIII and the respect of national or local disposal directives.

First Aid Measures

Contact with eyes
  • Wash immediately and abundantely with clean water and consult an ophtalmologist
Contact with the skin
  • Wash the affected area abundantely with clean water. Afterwards wash again with soap or light detergent
  • Wear protective clothing
  • Wash nose and throat with clean water. Breathe fresh air. If necessary consult a doctor
  • Wash mouth, drink water and consult a doctor


The product is not flammable.
All fire estinguishing agents can be used.
Above 950oC the lime will produce CO2 emission.


Individual precautions
  • Avoid all contacts with the eyes
  • Avoid contact with the skin
  • Handle the product with appropriate gloves
  • Wear a mask if required
Environmental protection
  • Avoid disposal in surface waters, sewers and drains
Cleaning and recovery methods
  • Avoid creating dust when collecting loose product. Once hardened the product can be collected as a normal construction debris. The hardening process is variable in accordance with weather conditions and water addition but is never below 1 hour.


Store away from the reach of children. Keep bags dry Reseal open bags immediately after use.
  • Wear appropriate gloves
  • Avoid inhaling the dust, wearing a mask if necessary
  • To avoid contact with the eye, wear suitable safety goggles
  • Manual handling : observe local health and safety directives

Control procedures for workers’ exposure and type of equipment for individuals’ protection.

Exposure control:

Total dust limit: 10 mg/m3
Air bourne dust limit: 5 mg/m3

Individuals' protection:

Inhalation protection: Wear appropriate mask
Hands protection: Wear appropriate gloves
Eyes protection: Wear goggles to avoid risk of splashes in the eyes.
Skin protection: Wear suitable protective work clothing.


Aspec white powder
Odor: None
Fusion temperature:  > 1000oC
Ignition Temperature Not Flamable
Danger of explosion: Not Explosive
Solubility in Water > 1.5 g/l at 20oC
PH in water solution: Alcaline between 12 and 13 (in saturated solution)
Apparent volumetric mass: 0.65 g/cm3 at 20oC
Absolute volumetric mass: 2.6 g/cm3 (20oC)
Granulometry 20 to 30% fines < 0.05mm


Stability: The product is stable at all temperatures
Conditions to avoid: Storage in damp areas to avoid an hydraulic set.
Materials to avoid: Reacts strongly with acids, generating CO2.


Inhalation: Inhalation can cause irritation of the respiratory ways and of the nasal mucose. In extreme cases the mucose can be eroded
Ingestion: Large ingestion can cause burining of the mouth, exophagus and stomac
Skin contact:

Can irritate the skin due to its high alcalinity

Contact with the eyes: Can cause irritation of the eye and the pupil
Proplongued rinsing is necessary
Cronic skin pathology: Prolongued exposure without adequate protection (gloves) can cause dermatological irritation


Mobility: None
Potential bio-accumulation: None

The product is an alcaline material that brings the water pH to 12.4 in saturated solution


The product in its hardened state can be disposed as a normal construction debris.

Dispose of used bags in authorised refuse areas in accordance with local directives.


The product is not subject to ADR, RID, IMDG and IATA regulations. In general, avoid spillages of powder during transport.

ADR: European agreement on road transport of dangerous substances
RID: International rail transport regulation for dangerous substances.
IMDG: International maritime dangerous goods code.
IATA: International Air Transport Association.


Danger symbol: Xi irritant
Principal components: Calcium hydroxide
Phrases R:
  • R36/37/38- irritant for the eyes, respiratory ways and the skin
  • R41 - risk of severe lesion to the eyes
  • R43 – can damage the skin
Phrases S:
  • S2- keep away from childrens' reach
  • S24/25 - avoid contact with the skin and the eyes
  • S26 in case of contact with the eyes, wash immediately and abundantely with clean water and consult a specialist
  • S37 - wear appropriate gloves
  • S39 - wear protective eye goggles.

The recommendations in this document are based on our kowledge as it stands at the time of issue related to this product. They are given in good faith.

Under no circumstance the information can be considered as a quality guarantee.

The User attention is drawn to the eventual risks caused by the utilisation of a product for different purposes from the ones for which the product has been envisaged. It is the responsibility of the User to adopt the appropiate safety measures and to apply all regulations current at the time of use. The prescriptions contained in this document are given to help the User to fulfill its obligations. The precautions listed cannot be considered as exhaustive.

See also: Tradeco Data Sheet

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For further Guidance, contact your St Astier Distributor.
Copyright © 2016 CESA, Chaux et Enduits de St Astier