Hychem SF32 — Heavy duty general purpose solventless epoxy coating
Product description
HYCHEM SF 32 is a solventless, chemical resistant, two component epoxy coating with excellent resistance to early water spotting. Compared to HYCHEM SF20 it has superior resistance to organic acid exposure. HYCHEM SF32 is recommended for industrial projects in the food industry where absolute colour stability in light pastel shades is not a prime prerequisite. It is not recommended for exposure to hot oils and fats.
Typical applications
- Dairy food manufacturing
- Food & beverage production
- Abbattoirs and smallgoods preparation
- Bars & food preparation areas
- Assembly plants & all industrial processing floors
Features and benefits
- Best balance of performance vs price
- Chemical resistant to petroleum oils, dilute acids and alkalies, salts & hypochlorite solutions
- Durable – 100% solids provides a 500 micron DFT (two coat application)
- Wear resistant – hard wearing even in harsh and punishing environment
- Slip resistance – meets AS 4586 R10; will meet R11 to R13 with quartz aggregates
- Solventless – non-flammable
- Odourless – does not taint food
- High gloss finish – easy to maintain
Application guidelines
Summary from the data sheet — follow the PDF on site.
Surface preparation
- Concrete substrate shall be firm, clean and dry with a compressive strength of 25 MPa and surface tensile strength of 1.5 MPa minimum.
- New concrete must be allowed to cure for a minimum of 28 days.
- Repair imperfections (holes and cracks) with an epoxy patching compound such as HYCHEM GP where necessary.
- Remove surface laitance, contaminants, coating, curing compound and all weak and loose materials.
- Prepare concrete surface by Diamond Grinding or light Shot
Blasting to provide the appropriate surface profile for optimum mechanical keying.
Priming
- Priming is only required for highly porous surfaces requiring substrate consolidation. When necessary, apply HYCHEM E100 by roller at a rate of 5 to 6 sqm/litre.
Mixing
Mix only enough quantity that can be applied within the work life which is temperature dependent.
- When required mix colour pack into resin component and blend before adding hardener. Move the mixer around from side to side and top to bottom and scrap the sides of the mixing vessel to ensure thorough mixing. Mix for a minimum of 3 minutes.
Smooth finish
- Apply Hychem E 100 Primer (where necessary) using a medium nap roller at a coverage rate of 4-6 sqm per litre depending on the coarseness of the surface. Allow to become tack free before applying HYCHEM SF32.
- Apply first coat of Hychem SF32 using a medium nap roller at a coverage rate of 4 to 6 sqm. Allow to cure to a tack free finish.
- Apply second coat of Hychem SF32 at a coverage rate of approximately 4-6 sqm per litre. Allow to cure for a minimum of 24 hours before subjecting to traffic and 3 days before normal use.
Non-slip finish
- Apply as above. Broadcast grit aggregate (size to suit anti-slip requirement) into the first coat while it is still wet and allow to cure overnight.
- Sweep off loose quartz aggregate.
- Apply second coat of HYCHEM SF32 to seal the surface.
Slip Resistance is dependent on the size (grading) of aggregates used:
- 80 mesh Alumina – R 11
- 36 mesh Alumina – R 12
- 24 mesh Alumina – R 13
Clean up
Xylene can be used for cleaning tools and equipment before the mixed compound begins to harden.
Coverage
| Hychem E 100 Primer | 4 to 6 sqm/litre |
|---|
(depending on the porosity and texture of the surface)
| First coat | 4 to 6 sqm/litre |
|---|
(depending on the porosity and texture of the surface)
| Second coat | 6 to 8 sqm/litre |
|---|---|
| Over Trowelled on Topping | 4 to 6 sqm/litre |
Packaging
HYCHEM SF32 is available as a 6 litre and a 24 litre kit. It is normally supplied as a 3 component kit of resin, colour pack and hardener.
It can also be supplied as a premixed coloured resin for larger preordered jobs.
Shelf life
12 months from date of manufacture, stored under shelter at 25°C in original un-opened container.
Technical data
| Property | Value | Unit / method |
|---|---|---|
| Properties measured at | 25°C |
Physical properties
| Property | Value | Unit / method |
|---|---|---|
| Specific gravity | 1.30 kg/litre | |
| Solids content | 100 | % |
| Pot life | 45 mins | |
| Mix ratio by volume — (Resin:Hardener) | 2:1 | |
| Tack free time | 8 | hours |
| Re-coat time | 12 | hours |
| Cure time | 18 hours – foot traffic 30 hours – normal traffic | |
| Film thickness per coat | 200–300 microns | |
| Slip resistance | R10—R13 dependent | |
| ANZ4586:2004 | on anti-slip | |
| Colour stability | Fair, only available in dark colours |
Chemical resistance
The chemical resistance of a material is generally determined by immersing the material in the designated chemical and then seeing whether the material gains or loses wt over time. The table below gives a guideline as to how HYCHEM SF32 is likely to perform when immersed in a certain chemical. A value of 100 is equal to an absorption wt gain of 3%.
| Xylene | 40 | Butyl Cellosolve | 125 | |
|---|---|---|---|---|
| Toluene | 200 | MEK | ||
| Trichlorethylene | 25 | Skydrol | 15 | |
| Skydrol | 15 | 50% Caustic soda | 0 | |
| 10% Acetic acid | 80 | 70% Sulphuric acid | 10 | |
| 10% Lactic acid | 50 | 98% Sulphuric acid |
HYCHEM SF 32 is a solventless, chemical resistant, two component epoxy coating with excellent resistance to early water spotting. Compared to HYCHEM SF20 it has superior resistance to organic acid exposure.
Questions about Hychem SF32
Where is Hychem SF32 used?
Hychem SF32 is used for: Dairy food manufacturing; Food & beverage production; Abbattoirs and smallgoods preparation; Bars & food preparation areas; Assembly plants & all industrial processing floors. See Car park flooring and deck coatings.
How long does Hychem SF32 take to cure?
Tack free time: 8 hours. Re-coat time: 12 hours. Cure time: 18 hours – foot traffic 30 hours – normal traffic. Lower temperatures extend these times; the data sheet gives the conditions.
How thick is Hychem SF32 applied?
Film thickness per coat: 200–300 microns.
Is Hychem SF32 slip resistant?
Slip resistance – meets AS 4586 R10; will meet R11 to R13 with quartz aggregates. Slip classes are tested to AS 4586.
Where is the Hychem SF32 data sheet?
Download the Hychem SF32 technical data sheet (PDF). For the safety data sheet, request it and we send it the same day.
Who installs Hychem SF32?
Hychem SF32 is supplied by Hychem and laid by an approved applicator from our national network — jobs of any size, in every state. How supply and installation works.
Similar systems
Other Concrete Sealers and Coatings systems for carparks.
- Hychem SF20Heavy duty epoxy coating with good colour stabilityView system Data sheetChemical resistantSlip resistant
- Hychem SF12Fast cure Novolac epoxy coating with high chemical resistanceView system Data sheetChemical resistantFast cureLow temperature cure
- Hychem SF20FGHeavy duty, anti-slip epoxy coatingView system Data sheetChemical resistantSlip resistant



