No, you can not just slip end cap on the end of neon flex. You must use Silicone Glue (Adhesive) to achieve an IP65 rating. Apply the glue inside the cap and around the cut end of the strip before firmly pressing them together to create a mechanical seal.
For the step-by-step process on how to waterproof advertising LED neon flex, please refer to our dedicated guide: [4 Steps to Effectively Waterproof Neon Light Cut Ends of Advertising Neon Lights].
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