Hychem PA300 — Rapid setting UV-stable coloured Polyaspartic

Surface preparation on concrete

Prior to the application of PA 300, the substrate must be thoroughly prepared.

• The concrete substrate must be firm, clean and dry with a minimum compressive strength of 25 MPa and a minimum surface tensile strength of 1.5 MPa.
• New concrete must be allowed to cure for a minimum of 28 days.
• Remove all surface laitance, contaminants, existing coatings, curing compounds and any weak or loose materials.
• Prepare the concrete surface by Grinding, Shot Blasting, Scarifying, Ultra High-Pressure Water Jetting or Scabbling to provide the appropriate concrete surface profile (CSP) for optimum mechanical keying.
• The extent of surface preparation required is dependent upon but not limited to the thickness of the coating system to be applied. It is highly recommended that all surface preparation is carried out in accordance with industry standards and publications such as NACE 02203 item No. 22420 or ICRI Technical Guideline No. 03732.

Very important note: The surface must be dry when applying

PA 300.

Surface preparation on timber, plastic or metal substrates

Please contact Hychem technical department for advice.

Pre-conditioning product

It is important to note that even when the application environment is warm, products which have been stored in cold or cooler conditions should always be pre-conditioned ideally to 20–25°C to ease mixing, application and help avoid other potential issues such as amine bloom or blushing.

Applying a cold product in a warm environment is not recommended.

Mixing ratio is 4:1 by weight (4 x Part A: 1 x Part B)

The product is generally supplied as 9kg neutral kit to which 1kg pigment is added.

Mix Pigment into Part A and stir thoroughly until the pigment is incorporated uniformly.

Add Part B and mix until uniform consistency is achieved

• do not over mix as this product has a short pot life.

A mechanical stirrer is used for this process to achieve optimum uniformity.

Up to 10% Xylene can be added to thin down product – only do this if specification and site regulations allow. The Xylene should be added and mixed into the pigmented Part A prior to addition of Part B.

If solvent is added, the application rate should be ≥ 8sqm/L to avoid trapped solvent in the film.

9kg Neutral kit (7kg A + 2kg B) + 1kg pigment.

This 10kg pack yields approximately 6.4L and will cover approximately 40sqm.

Actual cure times will be dependent on climatic conditions including air and substrate temperature, relative humidity and air movement.

All information is given in good faith and to the best of our knowledge.

Users are encouraged to assess the product under their own conditions and for their own applications.

12 months from date of manufacture, stored under shelter at 25°C in original un-opened container.