TECPPF's Simple Guide to Testing the Quality of Your PPF

1. Transparency Test

• How to Test: Apply the PPF on a car's paint or a smooth, colored surface and observe its transparency.
• High-Quality PPF: Has high transparency, without a cloudy or hazy appearance, and enhances the paint’s gloss.
• Low-Quality PPF: May appear white or hazy, negatively affecting the vehicle's appearance.

2. Scratch Resistance Test

• How to Test: Lightly scratch the film surface with a key or sharp object, then use a heat gun or rub the area to generate heat and observe if the scratches self-heal.
• High-Quality PPF: Scratches heal with slight heat, and the surface returns to its original condition.
• Low-Quality PPF: Scratches remain and cannot be repaired, or the self-healing effect is minimal.

3. Hydrophobicity Test

• How to Test: Drop a few water droplets on the PPF surface and observe how the water behaves.
• High-Quality PPF: Water beads up and rolls off quickly, indicating good hydrophobic properties.
• Low-Quality PPF: Water spreads out and stays on the surface, showing poor hydrophobic effect and making it more prone to dirt accumulation.

4. Stain Resistance Test

• How to Test: Smear the surface with an oily marker or dirt (like dust or grease), then wipe it with a damp cloth or water to see how easily the stain is removed.
• High-Quality PPF: Dirt and stains are easily wiped away, leaving the surface clean.
• Low-Quality PPF: Dirt is difficult to remove, and stains leave residues on the surface.

5. Tensile Strength Test

• How to Test: Try stretching a small piece of the PPF by hand and observe how it reacts.
• High-Quality PPF: The film stretches without tearing and returns to its original shape, indicating good flexibility and strength.
• Low-Quality PPF: The film tears easily or fails to return to its original shape, showing poor strength and elasticity.

6. Yellowing Test (Simple Simulation)

• How to Test: Place the PPF sample under strong light or UV light (like a UV lamp) to simulate UV exposure, and check for color changes after a few days or a week.
• High-Quality PPF: Remains clear and transparent, demonstrating excellent resistance to yellowing.
• Low-Quality PPF: Turns yellow or darkens, indicating poor UV resistance.

7. Adhesive Residue Test

• How to Test: Apply the PPF to a smooth surface (like glass or metal), leave it for a few days, then remove it and check for adhesive residue.
• High-Quality PPF: Leaves little to no residue, and the surface is clean. The film is easy to peel off without damaging the paint.
• Low-Quality PPF: Leaves noticeable adhesive residue and may even damage the paint when removed. The film may tear or break during removal.

8. Thickness and Texture Test

• How to Test: Use a caliper to measure the thickness of the film, or simply feel the surface and edges of the film.
• High-Quality PPF: Has uniform thickness, typically around 7-8 mil. The surface feels smooth, with a certain weight and good flexibility.
• Low-Quality PPF: Feels thin and brittle, prone to damage, with a rough texture.