cap & plugs

cap & plugs

Locus Caps & Plugs are precision-molded protective solutions designed to seal, insulate, and protect tubing, shafts, holes, and pipe ends from dust, moisture, impact, and corrosion.

Brand : LOCUS
Material Options : Polypropylene (PP), Low-Density Polyethylene (LDPE), PVC, Rubber, Silicone
Color : Red, Yellow, Blue, Black, Transparent (Customizable)
Sizes : Range from 2 mm to 150 mm (Inner & Outer Diameter-Based)
Shape Options : Round, Square, Rectangular, Custom Molded
Temperature Range : -40°C to 120°C (Material Dependent)
Application Type : Protective, Sealing, Dust-Proofing, Transportation Safety

Description

1. Description

Locus Caps & Plugs are precision-molded protective solutions designed to seal, insulate, and protect tubing, shafts, holes, and pipe ends from dust, moisture, impact, and corrosion. Available in a variety of shapes, sizes, and materials, they are ideal for industrial, automotive, hydraulic, pneumatic, and electronic applications.

2. Specifications

Specification	Value/Range
Material	PP, LDPE, Rubber, PVC, Silicone
Shape	Round, Square, Hex, Custom
Diameter Range	2 mm to 150 mm
Color Options	Red, Yellow, Black, Transparent (custom)
Hardness	30A to 90A Shore
Temperature Rating	Up to 120°C (Material-Specific)
UV Resistance	Yes (optional additive for outdoor applications)

3. Working

Caps & Plugs function by creating a tight interference or push-fit seal over or inside the component openings, protecting the interior from external contaminants, physical damage, or leakage during storage, transportation, or operation.

4. Principle

They work on the mechanical principle of pressure fit or compression sealing, often enhanced by the elasticity of the chosen polymer. This ensures grip retention and barrier protection under various operational conditions.

5. Assembly

Step 1: Choose the correct size & shape based on internal/external diameter.
Step 2: Align the cap/plug with the open end or hole.
Step 3: Push-fit manually or using a pressing tool (for tight tolerances).
Step 4: Ensure complete seating without gaps.

6. Installation Process

Manual Fitment for general use.
Semi-Automatic Fitment Machines for large-scale assembly lines.
Ensure surface is clean and free of burrs for a perfect fit.
Lubricant or heating (for tight rubber plugs) may be used for ease.

7. Technical Specification

Property	Value
Tensile Strength	10 – 35 MPa
Elongation at Break	300 – 600%
Shore Hardness	30A – 90A
Heat Deflection Temp	60°C – 120°C
Insulation Resistance	Excellent (Silicone & Rubber Types)
Chemical Resistance	High (especially in PVC & Silicone)
UV Resistance	Optional with Additives
Flammability	UL94 Options Available

8. Troubleshooting

Issue	Cause	Solution
Cap Not Fitting	Wrong size or shape selected	Re-check dimensions & tolerance
Cracks in Plug	Material not suited for temp/pressure	Use high-grade silicone or rubber
Plug Loosening	Insufficient interference fit	Switch to tighter tolerance product
Difficulty in Removal	Excessive interference or tight fit	Use plug remover tool or lubricant
Material Deformation	Exposure to chemicals or UV	Upgrade to UV/Chemical resistant

9. HS Code

Product Type	HS Code
Plastic Caps/Plugs	39269099
Rubber Caps/Plugs	40169390
Silicone Caps	39269099

10. FAQs

Q1. Can I customize caps with my logo?
👉 Yes, we provide custom molding & logo branding on request.

Q2. Are these reusable?
👉 Most plastic and rubber caps are reusable depending on the application.

Q3. Are these safe for food-grade applications?
👉 Yes, we offer FDA-approved materials for food/medical use.

Q4. What’s the delivery lead time?
👉 3–7 days for standard sizes, 10–20 days for custom.

Q5. Do you offer export packaging?
👉 Yes, international-grade packaging with barcoding and labeling.

11. Applications

Industry	Use Case
Automotive	Protect open ports, connectors, brake fittings
Hydraulics	Seal hydraulic pipe ends, prevent leaks
Electronics	Cover exposed terminals, dust-proofing
Construction	Temporary sealants in exposed rods/tubes
Oil & Gas	Pipe protection during transport/storage
Medical Devices	Tip protectors, lab containers (Silicone)
Furniture	End caps for tubular legs and supports

🏷️ Locus Brand Advantage

- In-house mold design & rapid prototyping
- Bulk order support & OEM/White Label Manufacturing
- REACH, RoHS, ISO 9001:2015 Certified production facility
- Export packaging, barcode, and custom branding
- Serving 12+ industries globally