Research & Development
Pioneer for intelligent solutions
Remaining curious, constantly inventing and improving: typical for Caramba. We do not shy away from any expenses. Twenty scientists and experts develop a continuous stream of new products in our three research laboratories… always in touch with the needs of the customers… always put through their paces.
- Four-ball device
- Salt spray chamber
- Water displacement (Moses effect)
- Measurement of initial breakaway torque
- Windscreen cleaner test station
Four-ball testing device
Limit loads for lubricants
This method according to DIN 51350 is used to measure the lubricating properties of a material under high pressure (four-ball test value). The device consists of a running ball rotating on three lubricated stationary balls. The test force of the running ball pressing on the stationary balls is increased incrementally. The four-ball test value is reached when the lubricant film breaks and the balls fuse through friction heat. Particularly the special lubricants from Caramba show peak values with wear protection:
- Caramba Multi-oil Super Plus: 2,200 N
- Caramba high-performance multi-purpose grease with PTFE: 2,400 N
- Caramba high-speed chain spray: 1,900 N
Salt spray chamber
Maritime climate in the test chamber
The salt spray test according to EN ISO 9227 simulates an artificial maritime climate. Rust protection agents are sprayed here on metal surfaces under extremely corrosion-promoting conditions. Within a few days, it is possible to study processes, which would otherwise take months or years. Standardised steel sheets are positioned here in the test chamber at an angle of 45° and sprayed with water vapour-salt spray. The temperature is a constant tropical 35 °C.
Under laboratory conditions, it is exactly recorded how many percent of the surface corrodes within what amount of time. Exact comparisons of different recipes and agents are thereby possible. The multi-oils and lubricants from Caramba protect especially effectively and long-lasting against rust. The premium multi-oil Super Plus exceeds all products of the competition:
- Caramba Multi-oil Super Plus: 5% corrosion after 14 hours
Water displacement test
Corrosion protection with Moses effect
Protection against moisture means protection against rust. The reason multi-function oil such as Caramba Super Plus acts so phenomenally is its capability of displacing water. These properties can be measured with the “Moses Test”. Some water is applied onto a glass plate. If a drop of Super Plus is added using a pipette, a circular water-free area of about 5 cm in diameter will develop immediately. It remains over a long period. Moreover, the water-displacing effect lasts even after repeated rinsing with water. No other multi-oil provides comparable values. So, for protection against moisture-induced corrosion Super Plus Multispray is the best choice on the market.
Measurement of initial breakaway torque
Showdown for rust removers
The longer an oxidation process lasts, the thicker the rust layer will become. With movable connections such as threads or joints the increased volume causes a “press fit”. The connection has seized through rust. Raw force only leads to the screw being torn off – the initial breakaway torque is too great.
A standardised test method is used to measure how effectively a rust remover helps in such tough cases. The decisive factors are dose, time and force applied (torque). The Caramba shock rust remover “Rasant” delivers superior values. It creeps into the smallest spaces. The rust layers are cracked here through an icing-over effect and the thread’s movement is restored. Measurements in comparative tests show: Already 3 g of shock rust remover are enough to lower the initial breakaway torque by 40 percent!
Windscreen cleaner test station
Test bench for a clear vision
Good vision contributes to road safety. A windscreen cleaner must therefore be able to reliably remove dirt, lubricant films and rubber abrasion of the wipers. At the same time, it should maintain the wiper blades and keep them resilient. Caramba therefore regularly tests its own windscreen cleaners parallel to competitor’s products.
A windscreen with wiper and washing system is installed in the standardised test system with refrigerating chamber. The window will be prepared with test dirt – a stubborn mix from hot wax, silicon, soot and oil. A camera records the cleaning process from the driver’s perspective; the effect is analysed electronically. Beyond this, Caramba tests the paint and plastic compatibility of the cleaner. The active ingredients for the care of the wiper blades and nozzles are also tested.
NSF Seal of quality
On the safe side with stringent U.S. standard
Cleaners for gastronomy, canteen kitchens and the food-processing industry must meet especially strict requirements. One of the most important certifications is granted by the National Sanitary Foundation (NSF). The seal of quality of the U.S.-American health protection organisation is considered worldwide the test standard for chemical substances in the sensitive foodstuff area.
The chemical and toxicological harmlessness of the recipe but also the usage instructions are examined. Application errors shall thus be ruled out.
Even two of our products bear the sought-after NSF seal of approval:
- Caramba All-purpose cleaner
- Caramba Stainless steel cleaner
Crucial test for solvents
Most cleaners on a solvent basis contain flammable substances. They must therefore be tested meticulously. If, for example, an aerosol can is accidentally operated near hot surfaces or open flames, there must be no flashback of the spray jet. Continuous burning of residual amounts must also be ruled out.
We have such substances – e.g. the Caramba Brake Cleaner – tested by the Physikalisch-Technischen Bundesanstalt (PTB) in Braunschweig. It is the most important German authority for this purpose. Its test certificate ensures optimal consumer safety. Flashbacks and continuous burning are ruled out with our products.
Test procedure for flammability:
- The product is sprayed on a metal bar that has a temperature of 825 °C.
- When doing so, it is observed as to whether there is a flashback to the aerosol can.
- This is followed by a check of whether the sprayed residual amounts of product continue to burn.
- The spraying duration is increased incrementally.