Do-it-yourself bumper putty
If the bumper is repaired, has areas of raw plastic, first of all you need to cover these places with a special primer. After a certain time (each composition has its own drying interval), prime with acrylic filler, and after it hardens, putty the bumper of the car, smooth it with fine sandpaper, degrease and paint.
Body kit repair requires the use of special materials. Depending on the type of coating, the composition also differs. Learn how to putty a car bumper with your own hands, what you need and how much.
Preparatory stage
Putty car bumper requires preparation. At this stage, the necessary tools and materials are selected:
- degreaser;
- paint-enamel in the color of the car body;
- priming;
- special primer, putty for plastic;
- skin of different grain sizes, in the range of 150-500;
- adhesive tape made of non-woven abrasive material, reminiscent of loose felt in texture.
Preparing the bumper for putty
The choice of putty
The choice of putty is a very important part of the procedure. The composition must meet several requirements:
- high elasticity - should not be covered with cracks during operation;
- strength - must withstand local shock and vibration, have a long resource;
- increased degree of adhesion to all polymeric materials;
- resistance to manual grinding - reliably fill any defects.
The choice of putty
Car bumper putty is a one- and two-component fine-grained mass based on polyesters, pigments, and dispersed accumulators. Apply it to the surface to be restored with a spatula or other suitable tool. It is extremely important not to treat acrylic coatings and cellulose with this material.
On sale now there are several varieties of putties that differ in the method of use, chemical composition, and basis. For example, materials with fiberglass are used to repair serious damage, deformation and rust. They differ in density, strength, good reinforcing properties. Also, for these purposes, it is recommended to use lightweight options, including empty glass beads, making the mass quite light.
Self-made putty mixture
The price of finished putty for many car owners can be high. In this case, it is possible to independently prepare the mixture. Here's how it's done:
- The crushed foam is placed in a convenient container.
- Pour it with acetone and dissolve, stirring.
- The sediment remaining at the bottom is used as putty.
Self-made putty mixture
Perfect bumper filler
If the bumper is “naked”, not covered by anything, it must first be coated with a primer. It is enough to degrease the plastic body element before direct application. Further it is recommended to grind to eliminate small blots of work. After that, a pause of 20 minutes is made. Then the paint is just applied.
It is noteworthy that some parts are sold with a gray primer already applied. Such models should be immediately sanded with a fine abrasive, and then painted over.
If the bumper is repaired, has areas of raw plastic, first of all you need to cover these places with a special primer. After a certain time (each composition has its own drying interval), prime with acrylic filler, and after it hardens, putty the bumper of the car, smooth it with fine sandpaper, degrease and paint.
Bumper putty
A few mandatory rules that must be observed in the process of work in order to properly putty the bumper of the car:
- processing of the site is carried out by gradually expanding the area around the furrow;
- before applying the putty, the repaired part of the coating is correctly processed with a primer;
- it is recommended to use a factory-made or home-made rubber spatula as a tool;
- if the putty is prepared with your own hands, then you need to do it in small portions;
- when mixing with a hardener, you must follow the recommendations presented in the instructions - if you put more solution, it will seize in a short time, will not allow you to completely stretch the entire working plane and will crack;
- it is advisable to sand the dried layer of putty with paper with a grain size of P220, and then P320 - after that, a primer is placed, then the surface is polished to a matte state with an even smaller number;
- after processing with scotch-brite, the surface is degreased and painted.
Thus, puttying the plastic bumper of a car with your own hands will not be particularly difficult. However, you need to have the appropriate skills and knowledge.
