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Do not change antenna's color without advising the manufacturer.
30/03/2022 Posted by: ft-rf.com.tw
Critical Advisory Notice
Antenna Color Customization:
Antenna Color Customization:
Why You Should Never Do It Yourself
Critical Advisory
Do not change any part of the antenna without advising FT-RF. Military-grade antennas are built to strict specifications. Unauthorized modifications may cause operational failure or equipment damage.
FT-RF frequently receives inquiries about repainting military vehicle antennas. While we understand operational requirements for color matching, we must emphasize: never change the antenna's color or any component without consulting us first. This article explains the risks and the correct procedure.
1. Built to Precise Specifications
Our MJ-Series antennas are engineered to meet strict standards for frequency response, mechanical strength, environmental resistance, and electromagnetic compatibility. Every component—including the factory-applied paint—is part of a complete, tested system. Changing any single element can alter performance or compromise mechanical integrity.
2. The Hidden Danger: Heat + Adhesive = Water Damage
Critical housing and connector interfaces are sealed with industrial-grade adhesives. However, no standard adhesive withstands high temperatures indefinitely:
🔥 At 120°C (248°F), conventional adhesives degrade within 5 minutes.
Once the adhesive becomes brittle:
- Seals break down → moisture enters the housing
- Water ingress causes: detuning, corrosion, short circuits, or complete antenna failure
Key point: Most spray paints require baking above 120°C. A routine paint job can destroy adhesive seals—and your antenna's waterproof rating—in minutes.
3. Additional Risks of Unauthorized Modifications
| Risk Factor | Consequence |
|---|---|
| Excess paint thickness | Alters resonant frequency and detunes the antenna |
| Conductive or metallic paint | Detunes the radiating element, degrading signal quality |
| Overspray on connectors | Affects grounding and impedance matching |
| Chemical solvents | Attack plastic housings, rubber seals, and O-rings |
| Unauthorized disassembly | Voids the product warranty immediately |
4. The Right Way: Contact FT-RF First
- 1 Contact us with your model number, current color, desired color (RAL/Pantone code), and operating environment.
- 2 Our engineers evaluate feasibility — paint compatibility, adhesive thermal tolerance, and structural integrity are all assessed.
- 3 Choose your solution:
| Option | Description | Best For |
|---|---|---|
| Factory repaining | Controlled coating process at our certified facility | Guaranteed waterproofing & RF performance |
| High-temp adhesive upgrade | Replace standard adhesive with heat-resistant formula | Field customization or third-party painting |
- 4 Receive updated documentation — new test reports, a revised product label, and continued warranty coverage.
5. Frequently Asked Questions
Q1: Can I use automotive touch-up paint for minor scratches?
No. Even small areas affect surface current distribution. Contact us for an approved repair kit.
Q2: What if I only paint the mounting bracket?
Generally acceptable, but consult us beforehand to avoid accidental overspray onto the radiating element.
Q3: Does the high-temperature adhesive upgrade cost extra?
Yes, but the additional cost is minimal compared to replacing a water-damaged antenna in the field.
Q4: How long does factory repainting take?
Typically 5–7 business days. Expedited service is available for urgent operational requirements.
6. Conclusion
⚠️ One improper paint job can turn a mission-critical antenna into a field failure.
FT-RF helps you achieve the exact look your operation requires — without compromising performance, waterproofing, or warranty coverage. Before you paint, contact us.
