Processes

RONALLOY™ coating

GT 300 / T.E.A.® B

The RONALLOY™ GT 300 / T.E.A.® B surface treatment deposits an intermetallic alloy of copper (62%) and tin (38%) on components free of lead, cobalt and cyanides.
It is a semi-gloss coating with a white bronze effect, which can be used both as a finish and as a substrate. It is durable and has good resistance to corrosion, wear, and tarnishing. Resistance to fogging can also be enhanced by applying an additional chrome coating.

It complies with Regulation (EC) 1907/2006 (REACH), and is a valid alternative to nickel in components intended for contact with drinking water and liquids for human consumption (food, beverages, etc.) and to white bronze.

COATING FEATURES

  • Thickness up to 20 μm
  • > 248 h NSS
  • > 48 h CASS
  • Hardness 400-450 HV
  • Frame treatment
  • Rotary barrel treatment

TREATABLE WEIGHTS AND MEASURES

  • Minimum dimensions: a few millimetres
  • Maximum cylinder dimensions: 1850 mm – ø 450 mm – weight 450 kg
  • Maximum dimensions of parallelepipeds: 1.850x450x1.300 mm – weight 450 kg

COMPARISON WITH OTHER MATERIALS/DEPOSITS

TEA PLUS ® TEA® B +
Cr+3S
Ni Ni + Cr+6
Toxicity NO NO Toxic suspected carcinogen Toxic suspected carcinogen
REACH compliance YES YES YES YES
but excluded since 2020
Metal content VERY LOW
20 g/l total
LOW
50 g/l
70 g/l 170 g/l di
Ni + Cr+6
Environmental impact LOW LOW HIGH VERY HIGH

TEA PLUS®

Toxicity: NO
REACH compliance: YES
Metal content: VERY LOW 20 g/l totale
Environmental impact: LOW

TEA® B + Cr+3S

Toxicity: NO
REACH compliance: YES
Metal content: LOW 50 g/l
Environmental impact: LOW

Ni

Toxicity: Toxic suspected carcinogen
REACH compliance: YES
Metal content: 70 g/l
Environmental impact: HIGH

Ni + Cr+6

Toxicity: Toxic suspected carcinogen
REACH compliance: YES but excluded since 2020
Metal content: 170 g/l di Ni + Cr+6
Environmental impact: VERY HIGH

SECTORS OF APPLICATION

  • Food: professional coffee machines, vending machines (boiler cover, boiler flange, heating element flange, cap, bell, interface bushing, plate, double cone, block, heating element holder fitting, spray holder, nipples, boiler, group body, tap body, filter holder group, dispensing group, coupling ring, fitting, injector, cap, mushroom, level body, shutter, valve body, perforator ring, pick-up tube, spray holder, adapter, fitting, diffuser, sleeve, tube coupling, distributor, bush, tube coupling, distributor, manifold, valve cap, pre-infusion chamber cap, injector fitting, gilgeur)
  • Food Sector ice makers (evaporator, evaporator unit, modular evaporator, CS evaporator)
  • Food Sector: beer taps and gassers (blending taps, taps, valve, tap heads, reducer)
  • Plumbing Sector (fitting, boiler, heating element, distributor, distributor, by-pass body, hydraulic components, fittings for circular heat exchangers, thermostatic valves, ball valves, manual valves, mixing valves, meter boxes, volumetric meter, fitting, metering device, reducer, elbow, cap, reduction, sleeve, tee, curved fitting, straight fitting, compression fittings, hose barb, washer, manifold)

Download

In this section you can download the PDF for the specific process.

FAQ

What are the advantages of RONALLOY™ GT 300 / T.E.A.® B surface treatment?

It is a process with a very low environmental impact: the concentration of salts is three times lower than in traditional processes. Deposition thicknesses of RONALLOY™ GT-300 – T.E.A.®Bup to 20 µm are also achieved.

It complies with REACH (CR Regulation No. 1907/2006) for enhanced protection of human health and the environment.

It does not contain toxic heavy metals such as Lead, Cobalt and Cadmium.

It allows maximum customisation, i.e. it can be applied as a substrate to gold, palladium, chrome and their combinations.

Gallery

Information request

Fields marked with an (*) are required.