How can i apply this ao it comes out neat

Make sure surfaces are clean. Work slowly using the smallest opening in the tube you can. Check your spelling before hitting 'send'.

Can this be used to help seal a drainage hole in a resin planter I now want to use as a water feature?

YES it can, as long as it is not too thick. If the hole is large, use a wood plug or short bolt/screw to fill the void and the Permatex as a sealer around it.

Could I put this along the edges of convertible top? I don't want to glue the top on, just improve the seal where rain drips in.

Yes it will work. The best way to seal it is to apply the sealant where you want it to stick, and put vaseline on the other surface so it does not stick. This way it will not be sealed shut. The side with the vaseline will not adhere to the sealant and you will get a gasket so your top can go up and down without tearing it apart once it dries. I hope this makes sense.

Does this work for a crack in a car dashboard?

Probably, it is like black caulk. Sticky to put on. I use a popsicle stick to smear it on a spot the removal part of my car top to fix a leak in the rubber seal. This stuff is flexible and worked great for that.

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Description

🖤 Seal it. Secure it. Own every fix with confidence.

BUILT TO BRAVE THE ELEMENTS - Waterproof, flexible, and vibration-resistant for lasting outdoor and indoor durability.
VERSATILE APPLICATION POWER - Perfect for door frames, weather stripping, seams, vinyl tops, and beyond—never get caught unprepared.
EXTREME TEMPERATURE TOUGHNESS - Performs flawlessly from freezing cold to scorching heat (-75°F to 450°F).
SEAL BOND REPAIR LIKE A PRO - One tube to mend glass, metal, plastics, vinyl & more—your all-in-one fix-it hero.
SENSOR SAFE FOR SENSITIVE JOBS - Safe on electronics and electrical wiring—protect your tech without compromise.

Permatex 81158 Black Silicone Adhesive Sealant is a professional-grade, sensor-safe RTV sealant in a convenient 3 oz tube. Designed for versatile use on glass, metal, plastics, vinyl, and electrical wiring, it offers waterproof, flexible protection with a wide temperature tolerance from -75°F to 450°F. Ideal for indoor and outdoor repairs, it cures fully in 24 hours, making it the go-to sealant for durable, reliable fixes that stand the test of time.

Specifications

Brand	Permatex
Specific Uses For Product	Seals, bonds, repairs, mends and secures glass, metal, plastics, fabric, vinyl, weather stripping and vinyl tops, Protects and repairs electrical wiring
Material	Silicone
Item Form	Tube
Special Feature	sensor-safe
Color	Black
Item Package Quantity	1
Package Information	Tube
Item Volume	3 Fluid Ounces
Viscosity	Medium
Full Cure Time	24 Hours
Water Resistance Level	Waterproof
Unit Count	3.0 Ounce
UPC	686226811585
Global Trade Identification Number	00686226811585
Manufacturer	Permatex
Item Weight	3.84 ounces
Product Dimensions	8 x 4 x 2 inches
Item model number	81158
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	81158
OEM Part Number	PMT81158
Special Features	sensor-safe

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