OBO Precision Blog
Engineering guides for dispensing machines, potting systems, materials, applications, equipment selection, and troubleshooting.

How Should Buyers Audit Supplier Change Control After Potting Material Approval?
Potting material approval is only reliable when supplier changes are controlled after approval. A material can pass sample tests, pilot runs, first-lot review, and post-release

What Post-Release Monitoring Should Buyers Use After Approving a Replacement Potting Material?
Release approval is not the end of replacement-material control. A replacement potting material may pass first-lot review and still need a short period of structured

When Should Buyers Hold or Release Production After a Replacement Potting Material Run?
A replacement material should not move into normal production just because the first run finished. The real release decision starts after the first run data

How Should Buyers Monitor the First Production Run After Switching Potting Materials?
The first production run after a material switch should be treated as a controlled release gate. Even after document review, sample trials, pilot runs, and

How Should Buyers Plan the Switchover From Last-Time Buy Stock to a Replacement Potting Material?
The riskiest moment is not buying the replacement material. It is the production switchover. A buyer may already have last-time buy stock under control and

How Should Buyers Manage Last-Time Buy Stock for Discontinued Potting Materials?
Last-time buy stock buys time, but it does not remove material risk. When an approved potting material is discontinued, buyers may purchase remaining inventory to

What Should Buyers Do When an Approved Potting Material Is Discontinued?
A discontinued approved material is not only a purchasing problem. It is a validation and production-risk problem. When a potting resin, adhesive, or encapsulant that

How Should Buyers Qualify a Second-Source Material for Dispensing and Potting?
A second-source material reduces supply risk only if it does not create a new process risk. Many buyers look for second-source materials after a lead-time

How Should Buyers Approve an Equivalent Material Proposed by a Supplier?
An equivalent material is not equivalent until it has been proven in your process. Suppliers may suggest an alternate material because of cost, lead time,
