- What This Cheat Sheet Covers (and What It Doesn't)
- The Exam at a Glance
- Six Domains, Six Weights
- Domain 1: Fundamentals and Process Overview
- Domain 2: Gel Coat Must-Knows
- Domain 3: Laminating, the 30% Heavyweight
- Domains 4-6: Spraying, Quality, Finishing and Repair
- Fees, Attempts and Logistics
- Validity and Renewal Rules
- Scheduling Domains by Weight
- Quick-Answer FAQ
- CCT here means ACMA's Certified Composites Technician, Open Molding specialty: 100 multiple-choice questions, 2 hours, 80% to pass.
- Laminating Application Technology is 30% of the exam, the biggest single domain; Gel Coat and Basic Knowledge are 20% each.
- Verified Open Molding enrollment is $345 for ACMA members and $475 for non-members, including materials and the exam.
- Delivery is self-launch online: no proctor, no code, no advance scheduling, one-year window, two included attempts.
What This Cheat Sheet Covers (and What It Doesn't)
This is a one-page-style review for the Certified Composites Technician credential issued by the American Composites Manufacturers Association (ACMA), specifically the Open Molding specialty, which we abbreviate CCT-OM. ACMA runs the CCT as a family of specialty examinations, so the details below apply to the Open Molding track. Where other tracks (such as Advanced Composites or Corrosion) differ, we say so or stay silent rather than guess.
If you are brand new to the credential, start with What Is CCT Certification? for the big picture, then come back here to lock down the facts you need on exam day. For a full preparation roadmap, pair this sheet with the CCT Study Guide, and when you want to test yourself under realistic conditions, use the CCT practice tests.
The Exam at a Glance
| Item | What to Know |
|---|---|
| Issuer | American Composites Manufacturers Association (ACMA) |
| Official name | Certified Composites Technician (singular) |
| Specialty covered here | Open Molding (CCT-OM) |
| Question format | 100 multiple-choice questions |
| Time limit | 2 hours |
| Passing score | 80% |
| Delivery | Online through ACMA Education Hub / My Enrollments |
| Proctoring | Self-launch; no proctor or access code |
| Scheduling | No advance scheduling |
| Completion window | One year from enrollment |
| Attempts | Two included |
| Pass rate | Not publicly disclosed |
A few things are deliberately not on this sheet because ACMA's public material does not verify them: whether the exam is open-book, whether calculators are permitted, and whether the test is adaptive. Do not build your strategy on any of those assumptions. Check the instructions inside your ACMA Education Hub enrollment before you launch the exam.
Six Domains, Six Weights
The Open Molding Body of Knowledge, linked from ACMA's issuer page, defines six examination domains with these weights. Note that these are six content areas inside one Open Molding exam, not six separate specialty exams.
| Domain | Topic | Weight |
|---|---|---|
| 1 | Basic Composites Knowledge / Manufacturing Materials and Process / Overview of Open Molding Lamination | 20% |
| 2 | Gel Coat Application Technology | 20% |
| 3 | Laminating Application Technology | 30% |
| 4 | Controlled Spraying Technology | 10% |
| 5 | The Approach to Quality | 10% |
| 6 | Open Molding Finishing and Repair | 10% |
Think of it as a 70/30 split: three domains (1, 2 and 3) carry 70% of the exam, and the remaining three share 30%. The full domain-by-domain walkthrough lives in the CCT Exam Domains Guide.
Domain 1: Fundamentals and Process Overview (20%)
Basic Composites Knowledge / Manufacturing Materials and Process / Overview of Open Molding Lamination
This domain is the vocabulary and big-picture foundation for everything else. Expect questions that check whether you understand what a composite is, what goes into one, and where open molding sits among manufacturing processes.
- The constituent parts of a composite: resin, reinforcement, and the role each plays in the finished part
- Common resin systems and reinforcement forms used in open molding
- How open molding compares with closed-mold processes at a conceptual level
- The general sequence of an open molding lamination job from mold to finished part
- Material handling and storage basics that protect resin and reinforcement quality
ACMA updated its Basic Composites Manual in March 2025, so if you are using older printed study material, confirm it matches current terminology. Because Domain 1 is the entry point for the other five, shaky fundamentals here tend to cause misses everywhere else.
Domain 2: Gel Coat Must-Knows (20%)
Gel Coat Application Technology
Gel coat is the cosmetic and protective surface layer of an open-molded part, and it is worth a full 20% of your score. Questions here are practical: they test whether you can recognize correct technique and diagnose what went wrong.
- The purpose of gel coat and how it differs from the laminate behind it
- Mold preparation and its effect on surface quality and part release
- Application methods and the variables that influence film thickness and coverage
- Catalyzation and cure behavior, including how conditions affect the process
- Recognizing common gel coat defects and identifying their likely causes
Domain 3: Laminating, the 30% Heavyweight
Laminating Application Technology is the single biggest slice of the exam. If you can only strengthen one area, this is where each study hour pays off most. Roughly three of every ten questions will come from here.
Laminating Application Technology
This domain covers how laminate is actually built in the mold: wetting out reinforcement, consolidating the layup, and managing the variables that determine strength and consistency.
- Reinforcement types and how they are placed, overlapped and fitted in the mold
- Resin-to-reinforcement relationships and why proper wet-out matters
- Consolidation: removing trapped air and ensuring good fiber contact
- Sequencing laminate layers and managing cure between them
- Equipment and tools used for hand layup and their correct use
- Typical laminating defects and the process errors behind them
Key Takeaway
Because Domain 3 is worth 30%, a weak showing here is very hard to offset elsewhere. Reaching 80% overall while underperforming on the largest domain would require near-perfect results on everything else. Prioritize laminating first, and revisit it again in your final review week.
Domains 4-6: Spraying, Quality, Finishing and Repair
The last three domains are 10% each. They are smaller individually, but together they equal 30% of the exam, the same as laminating alone. Do not skip them just because each is a "small" domain.
Domain 4: Controlled Spraying Technology (10%)
- Spray-up fundamentals: how chopped reinforcement and resin are delivered to the mold
- Equipment setup, calibration and the variables that affect output and consistency
- Operator technique and how it influences laminate quality
- Controlling emissions and material usage through proper spray practice
Domain 5: The Approach to Quality (10%)
- Process control concepts: monitoring, documenting and repeating what works
- Inspecting laminates and finished parts against acceptance criteria
- Identifying root causes rather than just treating symptoms
- The role of the technician in preventing defects before they happen
Domain 6: Open Molding Finishing and Repair (10%)
- Trimming, demolding and post-cure handling
- Finishing methods that bring a part to its final surface condition
- Repair approaches for cosmetic and structural damage
- Choosing materials and techniques that suit the repair at hand
Fees, Attempts and Logistics
Here is the verified cost picture for the Open Molding track (the same figures are verified for Advanced Composites enrollment; ACMA's Corrosion page lists the same examples, but we do not assert that every track is priced identically):
| Item | ACMA Member | Non-Member |
|---|---|---|
| Enrollment (stated materials and exam included) | $345 | $475 |
| Renewal | $70 | $125 |
The former $100 retake fee no longer applies. Instead, your enrollment includes two attempts within one year. If you use both attempts without passing, you must fully re-enroll. That makes your first attempt valuable: arrive prepared rather than treating attempt one as a trial run. For the complete pricing picture, see our CCT Certification Cost breakdown.
How the Online Exam Works
- Enroll through ACMA and access your course materials via the Education Hub / My Enrollments area.
- Complete your preparation within the one-year window.
- Launch the exam yourself when you are ready. There is no proctor, no access code, and no advance scheduling.
- Answer 100 multiple-choice questions within 2 hours and aim for at least 80%.
Because there is no scheduled testing date, the usual "exam date" panic does not apply. Your real deadline is the one-year completion window. Our CCT Exam Dates guide explains how this self-launch model changes the way you plan.
Eligibility
Eligibility is specialty-specific. For example, the Advanced Composites track accepts one year of documented experience, qualifying military or airframe training, or at least 35 hours of approved hands-on training. Do not assume those routes apply to Open Molding; confirm the requirements on ACMA's Open Molding page, and see CCT Requirements for how to approach the question.
Validity and Renewal Rules
- Validity: three years.
- Renewal requirement: the specialty course/workbook plus an assessment.
- Renewal fee: $70 for members, $125 for non-members.
- Lapse rule: if your certification has been expired for more than 12 months, you must go through the initial process again.
- Other tracks: the Advanced Composites and Corrosion renewal pages specify a 90% threshold. Do not carry that figure over to Open Molding without checking.
Scheduling Domains by Weight
Because the exam is self-launched, you control the calendar. A sensible approach is to allocate study time in proportion to domain weight, front-loading the heavy hitters. Here is one way to sequence an eight-week plan, adjustable to your experience level.
Domain 1 foundations
- Work through the Basic Composites Manual material, including the March 2025 update
- Build a glossary of resin, reinforcement and process terms
Domain 3 laminating (30%)
- Study layup technique, wet-out, consolidation and defect causes
- Do your first practice set and log every miss
Domain 2 gel coat (20%)
- Focus on application variables, cure behavior and defect diagnosis
Domains 4, 5 and 6 (10% each)
- Cover spraying, quality systems, finishing and repair in one pass
Review and timed practice
- Take full 100-question, 2-hour practice runs at the main practice site
- Revisit laminating and any domain where your misses cluster
For a deeper methodology and tips on how to pace yourself against the 2-hour limit (roughly 72 seconds per question), see the CCT Study Guide. If you are wondering how demanding all this really is, read How Hard Is the CCT Exam?, and note that ACMA does not publish a pass rate, which we discuss in CCT Pass Rate.
Quick-Answer FAQ
The current initial examination has 100 multiple-choice questions with a 2-hour time limit. A score of 80% is required to pass. ACMA does not disclose how many questions are scored versus unscored.
Laminating Application Technology at 30%. Gel Coat Application Technology and the Basic Composites Knowledge/Materials and Process/Overview domain are each 20%, while Controlled Spraying, The Approach to Quality, and Finishing and Repair are 10% each.
Your enrollment includes two attempts within a one-year completion window. If you use both attempts without passing, you must fully re-enroll. The old $100 retake fee no longer applies.
No. The exam is self-launched online through the ACMA Education Hub with no proctor, no access code and no advance scheduling. Your deadline is the one-year completion window from enrollment.
It is valid for three years. Renewal requires the specialty course/workbook and an assessment, at $70 for ACMA members or $125 for non-members. If it has been expired for more than 12 months, you must repeat the initial process.
Want to weigh the career side? Our ROI analysis and salary guide look at what the credential can mean for your pay and prospects, and CCT Jobs covers where certified technicians find work.