How LOCTITE® Pre-Applied Coating Works: Inside the PAAC’D® Process
LOCTITE® PAAC’D® Fasteners
Ever wonder how pre-applied adhesive fasteners are made? At The Coating House, we specialize in LOCTITE® PAAC’D® Fasteners – Pre-Applied Adhesive Coated components that arrive ready to use. Here’s how we make it happen and ensure every part meets the highest standards.
Step 1: Engineering Consultation
Our team reviews the customer’s requirements, including:
- Assembly environment
- Material compatibility
- Temperature, chemical, or pressure resistance
- Disassembly or service life expectations
We help choose the right LOCTITE® product for the job, whether that’s a threadlocker for torque control or a sealant for leak prevention.
What questions should you ask during coating selection?
- Will this part be exposed to vibration?
- Do we need permanent locking or serviceability?
- What environments will the fastener face?
Step 2: Coating Application
Using precision machinery, coatings are applied to exact specifications. Coating placement and coverage depth are tightly controlled. For extremely small parts or threads with non-standard geometries, manual application may be used with specialized tooling.
Is machine-applied coating more accurate? Absolutely. Pre-applied coatings offer reliable repeatability and clean installation, especially important for high-volume or automated lines.
Step 3: Activation & Curing
- Threadlockers remain inert until installation, when compression and shear activate curing
- Sealants cure or dry on the part and form a durable, elastic film upon tightening
What happens if coatings are misapplied? Misapplication can cause curing failure, leaks, or torque inconsistencies. That’s why using a certified partner like The Coating House matters.
Step 4: Inspection & Labeling
Each fastener batch is:
- Visually inspected for coverage accuracy
- Measured for torque/tension compliance (as needed)
- Labeled with lot, expiration, customer, and PO info
Why It Matters
This standardized process ensures:
- Lot traceability and inventory control
- Consistency from part to part
- Reduced in-field error and warranty claims
The Pre-Applied Coating Process by The Coating House
Need custom coatings, private labeling, or short runs? The Coating House can help. We work with manufacturers of all sizes to deliver parts that meet spec, every time.