Hychem International Pty. Ltd.

HYCHEM E 300
Epoxy Trowelling Resin

Chemical Type

Low viscosity Bis A/F epoxy resin

Description

HYCHEM E300 is a low viscosity epoxy resin designed to be blended with aggregate to produce a trowelled epoxy mortar. It is capable of being applied with a screed box using a 3-4:1 by volume mortar mix. This system produces the most consistent epoxy floors with ideal resin sand distribution. The finished mortar is primarily designed for the application of a 5-8mm epoxy mortar bed to concrete floors in the food and beverage industries.

Major Applications

Fish, meat and poultry retailing, abattoirs, butcher shops and smallgoods manufacturers.
Dairy and fat products processing, commercial kitchens and bars.
Food and beverage manufacturers, breweries, juice processors, bakery floors, wineries, battery rooms.

Chemical Properties

HYCHEM E 300 has excellentr resistance to spillage of a wide range of chemicals such as dilute mineral acids, dilute alkalies, petroleum oils and aliphatic solvents. It is resistant to vegetable fats, animal fats, ammonia and chlorine based cleaning fluids at ambient temperatures. Elevated temperatures and hot fats need special consideration, the use of HYCHEM TL 2 is recommended. For constant exposure to phosphoric, nitric and/or acetic acid in excess of 10%, HYCHEM TL 2 should be used. Full chemical resistance of epoxies develops only 7 days after initial cure even though full mechanical strength has already been reached.

Surface Preparation

The existing surface needs to be free of fats, oils, curing agents, surface laitance and other recognisable contaminants. Shot blasting, diamond grinding, acid washing and caustic degreasing are acceptable techniques. The finished prepared surface must have a tensile strength capable of absorbing the shear stresses applied by the epoxy as a result of thermal movements. The surface tensile strength (DIN 1048 part 2) should be at least 2.0 mPa with the lowest individual value a minimum of 1.5 mPa. Highly porous surfaces need to be primed with an initial coat of HYCHEM E300. This also applied when a dry mix subfill is used.

Product Preparation

Resin and hardener are mixed at 2 volumes to 1 and then poured into a suitable mechanical mixer to which the appropriate amount of quartz aggregate is added. The amount and grading of the quartz aggregate varies with the depth of topping required. Where used as a subf1ll a coarser 2 mm aggregate is often added.

Application

E300X Mortar Topping: The wet mortar mix is poured on the floor and trowelled to a minimum depth of 6 mm. Once cured, a seal coat is applied at a rate of 4-5 square metres per litre. The area is allowed to cure for a minimum of 8 hours. For a non-skid finish, calcined alumina aggregate is sprinkled onto the floor at the desired level and grade. A final seal coat of HYCHEM E 300T is then applied. This seal coat contains a small amount of thixotrope and quartz flour to improve surface build and opacity.

Coverage

Priming: Varies with porosity of the substrate, allow 4-6 sqm per litre.

Scratch Coat: 1-2 sqm per litre, dependant on texture of the surface.

Trowell Coat: 1.5 litres per sqm for 6mm topping.

Seal Coat: 0.5 litres/ sqm or 2 sqm per litre.

Aggregate Requirement: Around 20-25kg for 3 litres of mixed resin.

Packaging

HYCHEM E 300 is available in 30 litre and 60 litre kits. HYCHEM E 300T is available in 8 litre kits.

Indicative Specifications

Mix Ratio	2:1 v/v
Pot Life	40 min
Initial Walk On Time	70% hardness 16 hours, 90% hardness 30 hours.
Compressive Strength	Resin/Hardener/aggregate 60 - 65 MPa.
Viscosity Range (25°c)	Resin: 800-1,000 mPa. Hardener: 75–100 mPa.
Specific Gravity	Resin 1.12–1.13, Hardener 0.98–1.0, Mortar Mix 1.9–2.0.

How to Specify
The epoxy floor topping should be at least 6 mm in depth and contain a minimum of 20% by wt HYCHEM E300 solventless epoxy resin.

Safety Precautions
Epoxy products may cause allergic reactions through skin contact, goggles, protective gloves and overalls must be worn. Ensure that there is adequate ventilation and avoid breathing the vapour.
Customer Responsibility
The technical information and application advice given in this publication is based on the best information available at time of print. As the information herein is of a general nature, no assumption can be made as to the products suitability for a particular use or application and no warranty as to its accuracy, reliability or completeness either expressed or implied is given other than those required by Commonwealth or State Legislation. The owner, his representative or the contractor is responsible for checking the suitability of products for their intended use.
Field Support
Field support where provided, does not constitute supervisory responsibility. Suggestions made by HYCHEM either verbally or in writing may be followed, modified or rejected by the owner, engineer or contractor since they and not HYCHEM are responsible for carrying out procedures appropriate to a specific application.
Exclusion Clause

The information contained in this data sheet is based on many years experience and is correct to the best of our knowledge. HYCHEM will be under no liability whatsoever whether in:

Contract or tort (including, without limitation, negligence)
Breach of statute
Any other legal or equitable obligation other than the quality of the product at the time of despatch

Any queries about specification use or application should be directed to out technical service department immediately.
This exclusion clause does not operate to exclude any warranty that by law may not be excluded.

HYCHEM E 300Epoxy Trowelling Resin