What Are The Different Types Of Body Fillers For Automobile Repair

Thecar putty or bodywork puttyis one of the near unremarkably used items in the procedure of preparing and painting bases in whatever bodyshop.

It is a very thick pigment that is piece of cake to handle, and it comes in paste or cream format. It is used to repair and level out irregularities or dentsproduced on the surface of the bodywork, preparing it for the subsequent process of applying primer and stop paints.

Although most body putties are very versatile and can be used on different supports, some types are specifically designed to be applied on a particular material, such asplastic putties.

The right selection and awarding of the puttyis a critical attribute of quality work, every bit it enables the professional person to increment profitability in time and the consumed material on each repair.

Characteristics of bodywork putty

Currently, the about commonly used type of car putty in paint workshops and bodyshopspolyester one, which is a type that is equanimous of polyester resins.

The polyester putty is a product that is made up oftwo components (also said 2K), since it needs a specific benzoyl peroxide hardener (in a ratio of 2 or 3% of the weight, according to the technical data sheet) to be activated. When the putty is mixed with the hardener, information technology producesan exothermic chemical reaction  (which generates heat) which causes the putty to dry and harden.

The use of bodywork putty allows you lot to fifty-fifty out a metal or plastic surface, filling and levelling the area to be repaired. It plays anessential function as support and adherence element for base of operations paints and its right application will as well influence the concluding outcome of the finishing. An essential characteristic of a quality putty is good sanding and levelling behaviour.

It should exist noted that fillerspractise not generally provide metal corrosion protection, so if your intention is to provide protection to blank sheet metal, you should first apply an anti-corrosion primer.

In addition, the polyester putty cannot function every bit primer for terminal finish paints considering afterward sanding, you must utilise a priming coat which volition act as an insulating and anchoring glaze.

These are the main characteristics a proficient bodywork putty must provide:

Depression porosity and high elasticity

A quality putty should not generate many pores when applied, minimising irregularities on the surface.

In add-on, especially on flexible supports such every bit plastics, the putty must provide elasticity to blot possible impacts and vibrations, thus preventing keen.

Like shooting fish in a barrel application and sanding of the filler

The body filler must be like shooting fish in a barrel to utilize and to spread, resulting in a regular and homogeneous surface. In add-on, it should make the sanding process easier,without having to utilise excessive force per unit area or doing several sanding stages. This will outcome in less repair time.

Good resistance to compressive and tensile stress

Sometimes, if the micronage of the applied coat is excessive, when compressive or tensile stress is exercised, the putty coat and the topcoats of pigment may tend to cleft or peel. The concept of "level of weariness" of the filler, i.due east. the number of times it can withstand the same mechanical stress without deteriorating, is likewise important.

Correct Adherence

The polyester putty must have adept adherence to the support. It is essentialto use the appropriate putty for each surface, since each type has its ain characteristics to optimise anchorage and adherence to the unlike materials.

Types of car putties

In the past, bodywork putties had thicker and coarser finishes, forcing the professional to deadening down the putty application and sanding process.

Over fourth dimension, vehicle manufacturers have evolved bodywork designs, resulting in more than circuitous geometric shapes and design lines, using newpiece of cake to shape and lighter weight materials such every bit plastic or aluminium.

The appearance of these new materials in bodywork has besides forced manufacturersto develop new types of specially adapted putties, without detracting whatever loss of adherence, hardness, drying and sanding.

Today, the wide variety of types of putties has allowedto improve productivity and profitability in repairs, offering besides a better finish.

This technological evolution and the appearance of different types and compositions of putties also forces the bodywork professional to know each i of the variants that can better adapt better to each type of repair:

Universal polyester putty

It'southward the most common type of putty used in bodyshops.It has smashing hardness and resistance, and it as well provides adept adherence to steel plate, galvanising and electrozinc coating. Information technology also stands out for its versatile use, both in automobile refinishing and in industrial vehicles. A recommended product from this category of putties would exist URKI-FAST. Nosotros could also highlight the URKI-2000 in this section. It is easy to sand, apply, thin and flexible.

Lightweight or low-density putties

These are depression-density putties, with hollow charges, which makes them lighter. It is a type of  like shooting fish in a barrel-to-sand and utilize polyester putty, which is versatile and has a practiced level of adherence on different supports such every bit galvanised aluminium, plastics, steel, etc. Examples of this blazon of putty: URKI-LIGHT or URKI-LOW.

Putty for plastics

These are recommended for levelling deformations in plastic parts. Information technology is a type of putty that has ahigh level of shock absorption, and high elasticity and flexibility. It tin can provide expert adherence to the different types of plastics in a car, such as bumpers or outside mouldings. They tend to have a softer and less porous texture. A putty in this category would exist MASI-FLEX.

Aluminium putties

This filler contains aluminium metal pigments. This metallic component allows to increase the filling performance and hardness in comparison to other fillers. Aluminium particle-content fillers offer swell adherence on different types of surfaces such as steel, aluminium or zinc coated substrates. A recommended product would be BESA-SILVER.

Fibreglass reinforced putty

It is a blazon of very meaty polyester putty in which it has been added fibreglass, providing it with keen hardness and filling power, in addition to making information technology very adherent to different supports and materials. Examples of fibreglass reinforced putties: URKI-FIB and BESA-FIB.

High filling power polyester putty

These are mainly used when you need to utilise a thick coat of filler, mainly inmajor repairs where the office could not be levelled correctly by manual handling of the canvass metal.

They are used for pocket-size repairs where small-scale holes have been made in the bodywork. You can observe different load sizes to better adapt each repair. For example: URKI-FAST

Spray putty

These are used forbig surface filling. Their awarding is non-porous and uniform.

These fillers let less thickness, and are applied with an airbrush instead of a spatula, in order to optimise filler process times: BESA-ROC.

Putty for bear on-ups

Unmarried-component polyester filler based on acrylic resin and drying only by air evaporation. They are used to comprehend small pores or scratches;they accept depression mechanical resistance and must be applied in thin coats. Its filling capacity is more limited. A recommended product would exist URKI-KOMBI.

Tips for handling polyester putties

As nosotros always indicate out, it is advisable to take extreme precautions when working with chemical products such as polyester putties:

• Use of appropriate PPE: During handling, you lot should wear gloves, a sweatshirt, goggles and a suitable respiratory protector.
• Cleaning of equipment and tools: In society to prevent deterioration of the tools and equipment you utilise daily; you should pay special attention to their cleanliness. Application tools should not have any traces of the putty or hardener used in previous repairs, in guild to make a smooth and regular awarding on the surface. It is too advisable to acquit out the mixing in a make clean place designed for this purpose, to avoid contact with other products that may cause a possible chemical reaction.
• Controlled environmental conditions: You must ensure proper ventilation to preclude inhaling toxic fumes and avoiding exposing the putty to farthermost temperatures.

Source: https://lab.bernardoecenarro.com/en/car-body-putty-types-and-characteristics/

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