Store windshield repair resin according to the exact product’s instructions, retain its identity and batch information, and distinguish unopened shelf life from any conditions after opening. Do not apply another brand’s expiry period or assume that an unmarked bottle remains usable because the resin still looks clear. Uncertain or contaminated material should be held out of use until its status is resolved.
When a windshield repair injector leaks or does not behave as expected, stop and check the exact setup, approved seal, component condition, mounting, and maintenance requirements. Do not compensate by applying more force or pressure. Troubleshoot only within the manufacturer’s user-service procedures and use appropriate practice material when a functional test is needed.
Match a windshield curing lamp to the exact resin manufacturer’s requirements for light output, exposure arrangement, time, and any required film or tab. A lamp being on, bright, or described as UV does not prove that it can complete the specified cure. Treat the lamp, power source, resin, and application geometry as one controlled combination.
Windshield injection resin and pit filler serve different stages of an approved repair system. Select the exact material by its stated purpose, compatibility, application instructions, and curing requirements, not by bottle color or a generic glass-repair label. A higher viscosity is not automatically a higher-quality resin, and a successful surface finish does not prove that the internal damage was properly filled.
A PDR training station needs suitable practice material, stable support, controllable inspection lighting, task-matched tools, and qualified supervision. Assess the learner’s inspection, preparation, control, reassessment, and stopping decisions separately from speed. Buying a kit or completing a timed exercise does not by itself establish competence to repair customer vehicles.
Useful PDR before-and-after photographs show the same repair area under comparable viewing and lighting conditions, preserve the original files, and connect the images to the work record. A single flattering after-photo is not a complete quality check. Record the context, the defect under an inspection reflection, and the completed result from more than one relevant direction.