Place of Origin:
Guangdong, China
Brand Name:
Gate
Certification:
MSDS, TDS
Model Number:
LB-09
The LB-09 Automotive Undercoating Gun is a pneumatic suction-feed spray gun designed for applying automotive undercoating, rubberized underbody coating, stone chip coating and textured protective materials.
Instead of transferring high-viscosity coating into a conventional spray gun cup, the LB-09 uses a long metal suction tube to draw material directly from a compatible threaded coating container.
This design helps simplify material loading and is suitable for automotive repair shops, bodyshops, detailing centers and underbody protection applications.
Recommended English product terms:
The long suction tube reaches directly into the coating container, reducing the need to pour thick coating materials into a separate spray cup.
This can make material preparation and replacement more convenient during repeated repair work.
The approximately 2.0–2.5 mm nozzle passage is designed for materials such as undercoating, stone chip coating and other relatively high-viscosity textured protective coatings.
It is not intended to replace a conventional automotive paint spray gun for fine basecoat or clearcoat application.
With suitable material viscosity and spraying distance, operators can adjust air pressure to influence the resulting coating texture and coverage.
This allows the technician to produce different levels of coarse or fine protective texture according to the repair requirement.
The gun weighs approximately 0.285 kg and uses a lightweight alloy body.
The compact construction is suitable for repeated application around wheel arches, rocker panels and underbody areas.
| Item | Specification |
|---|---|
| Product Name | LB-09 Automotive Undercoating Gun |
| Product Type | Pneumatic Suction-Feed Undercoating Gun |
| Application | Undercoating, Body Schutz, Stone Chip Coating |
| Material Feeding | Suction Feed |
| Compatible Container | 1–2 L Threaded Coating Containers |
| Recommended Air Pressure | 0.2–0.3 MPa / 2–3 bar |
| Nozzle Inner Diameter | Approx. 2.0–2.5 mm |
| Air Inlet | Standard Pneumatic Quick Connector |
| Compatible Air Hose | 8 mm Air Hose |
| Body Material | Special Alloy / Aluminum Alloy |
| Suction Tube Length | Approx. 250 mm |
| Gun Length | Approx. 220 mm |
| Gun Height | Approx. 200 mm |
| Overall Size | Approx. 220 × 49 × 290 mm |
| Weight | Approx. 0.285 kg |
| Recommended Compressor | ≥3 HP |
| Recommended Accessories | Pressure Regulator and Water-Oil Separator |
| HS Code | 8424200000 |
| OEM / ODM | Available |
The standard gun assembly includes:
Pneumatic gun body with trigger for controlling material spraying.
Approximately 250 mm, allowing the gun to draw coating material from the container.
Used to secure the spray gun assembly to a compatible threaded coating container.
Bottom-mounted quick-connect air inlet for connection to a pneumatic air hose.
The LB-09 is designed around a different spraying requirement from conventional automotive paint guns.
The LB-09 focuses on protective coating application and texture reproduction, rather than fine paint atomization.
Apply stone chip and underbody coatings to wheel arches and wheel-arch liners where surfaces are exposed to road debris.
Suitable for textured protective coatings on rocker panels, lower side areas and other stone-impact zones.
Used for localized underbody coating after repair, cleaning or restoration work.
Suitable for selected chassis, frame and structural areas where a protective coating system is specified.
After body repair, the gun can help reproduce a textured protective coating on areas where the original surface had a visible protective texture.
Can be used on suitable bumper inner surfaces and other areas requiring protective textured coating.
Open the coating container and thoroughly mix the material.
For particle-containing or textured materials, stir or shake sufficiently to redistribute settled solids before spraying.
Insert the approximately 250 mm suction tube into the gun assembly and make sure it is securely installed.
Attach the locking nut to a compatible threaded coating container.
Make sure the connection is secure before introducing compressed air.
Connect the pneumatic air hose to the gun's air inlet.
An 8 mm air hose is recommended according to the supplied specification.
Start around 0.2–0.3 MPa / 2–3 bar.
Actual operating pressure may need adjustment according to:
Before spraying the vehicle, test the coating on a scrap metal panel or other suitable test surface.
Check:
Adjust the pressure and spraying technique as necessary.
The final texture depends on more than air pressure alone.
Important factors include:
Air pressure + coating viscosity + spray distance + material flow + spraying speed
Generally, a suitable combination of higher-viscosity material, appropriate spray distance and controlled material output can produce a more pronounced texture.
A suitable reduction in material output and optimized air pressure and spray distance can help produce a finer appearance.
Always test the combination on a sample panel first.
Different undercoating formulations have different viscosities and solids contents, so there is no single pressure setting that produces the same texture with every material.
| Comparison | LB-09 Undercoating Gun | Conventional Paint Spray Gun |
|---|---|---|
| Main Material | Undercoating / Stone Chip Coating | Basecoat / Clearcoat / Primer |
| Material Viscosity | Relatively High | Usually Lower |
| Feeding Method | Suction Feed | Typically Cup Feed |
| Nozzle Passage | Approx. 2.0–2.5 mm | Usually Designed for Fine Atomization |
| Spray Purpose | Protective Texture | Fine Paint Finish |
| Typical Finish | Textured / Protective | Smooth / Fine |
| Typical Application | Underbody, Wheel Arch, Rocker Panel | Vehicle Exterior Paint |
| Material Container | Compatible Threaded Container | Spray Cup |
| Main Requirement | Coverage & Texture | Atomization & Finish Quality |
Key point: The LB-09 is a specialized protective-coating tool, not a general-purpose automotive paint gun.
Connect compatible threaded coating containers directly to the gun to simplify material loading.
The larger nozzle passage is designed around high-viscosity protective coating applications.
The suction-feed design can reduce the need for transferring undercoating into a separate cup.
Approximately 0.285 kg, making the gun relatively easy to handle during localized underbody and body-side applications.
Air pressure, material flow and spraying technique can be adjusted to achieve the required protective texture.
The LB-09 can be supplied as a workshop consumable or as part of an automotive refinishing accessory range.
Useful for stone-chip and underbody coating during collision repair and body restoration.
Suitable as a complementary accessory for customers purchasing undercoating, stone chip coating and body Schutz products.
Can support underbody restoration and localized protective coating applications.
Suitable for bundling with:
The product can be considered for OEM, ODM and private-label sourcing, subject to packaging, branding and order requirements.
For stable operation, the recommended setup is:
Air Compressor ≥ 3 HP
↓
Water-Oil Separator
↓
Pressure Regulator
↓
8 mm Air Hose
↓
LB-09 Undercoating Gun
A pressure regulator helps the operator make more consistent adjustments during texture application.
A water-oil separator is recommended because moisture or oil contamination in compressed air can negatively affect spraying consistency and coating quality.
Possible causes include:
Check the material condition, suction tube and connections before increasing pressure.
Check:
Perform a test spray before changing the vehicle surface.
The material may be too thin or the spraying conditions may provide excessive atomization.
Adjust material consistency and spraying parameters according to the coating manufacturer's instructions.
Maintain a consistent:
Avoid concentrating material in one area.
For professional B2B buyers, the important quality points of an undercoating gun include:
For bulk orders, buyers can request product samples for compatibility and spraying tests before confirming production.
GATE LB-09 is positioned as a practical pneumatic spray solution for automotive protective coatings.
Its design combines:
Direct Container Feeding
+
Large-Bore Material Passage
+
Lightweight Alloy Gun Body
+
Adjustable Air Pressure
+
Automotive Undercoating Applications
This makes it suitable for distributors and professional repair businesses looking for a dedicated tool for underbody protection, stone-chip coating and textured coating restoration.
GATE can support B2B customers with:
For distributors, the LB-09 can be sold individually or bundled with compatible undercoating and stone-chip coating products to create a more complete automotive underbody protection solution.
For bulk quotation, please provide the required quantity, target market and preferred packaging configuration.
The GATE LB-09 is a pneumatic suction-feed Automotive Undercoating Gun designed for spraying underbody coating, Body Schutz, stone chip coating and other textured protective materials.
With a long approximately 250 mm metal suction tube, the gun can draw material directly from compatible 1–2 L threaded containers, helping simplify material loading and reduce unnecessary transfer steps. Its approximately 2.0–2.5 mm nozzle passage is suitable for relatively high-viscosity protective coatings, while adjustable air pressure allows operators to fine-tune coverage and surface texture.
Made with a lightweight alloy body and weighing approximately 0.285 kg, the LB-09 is suitable for repeated work on wheel arches, rocker panels, underbody areas, chassis components and repaired surfaces requiring protective textured coatings.
Recommended for automotive bodyshops, collision repair centers, detailing businesses, restoration workshops and automotive refinishing distributors.
OEM, ODM and private-label cooperation are available for qualified B2B orders.
The LB-09 is designed for spraying automotive undercoating, Body Schutz, stone chip coating, rubberized underbody coating and other suitable textured protective materials.
It is not primarily designed for basecoat, clearcoat or other fine automotive paint applications. Its larger material passage and suction-feed design are intended for relatively high-viscosity protective coatings.
The supplied specification indicates compatibility with 1–2 L threaded coating containers. Buyers should confirm the exact container thread before bulk purchasing if a specific coating brand or container is required.
The recommended operating range is approximately 0.2–0.3 MPa, or 2–3 bar. The actual setting should be adjusted according to coating viscosity, spray distance and the desired texture.
A compressor of 3 HP or above is recommended. A pressure regulator and water-oil separator are also recommended for more stable pneumatic spraying.
Yes. Within the suitable operating range, operators can adjust air pressure, material flow, spraying distance and movement speed to influence the final texture. A test panel should always be used before production spraying.
The standard assembly described for the LB-09 includes the gun body, approximately 250 mm long metal suction tube and container locking nut.
Yes. GATE supports OEM, ODM and private-label cooperation. Packaging and branding requirements can be discussed according to order quantity and project requirements.
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