TLE7 IA AUTO M2 v2
TLE7 IA AUTO M2 v2
TLE7 IA AUTO M2 v2
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Technology and
Livelihood Education
AUTOMOTIVE SERVICING
Management Team
Chairperson: Dr. Arturo B. Bayocot, CESO III
Regional Director
Automotive
Servicing
Module 2
Preparing Surface for
Sealant/Adhesive
What I Need to Know This will give you an idea of the skills or
competencies you are expected to learn in
the module.
i
What I Have Learned This includes questions or blank
sentences/paragraphs to be filled in to
process what you learned from the lesson.
1. Use the module with care. Do not put unnecessary mark/s on any part of
the module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your
answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are not
alone.
We hope that through this material, you will experience meaningful learning
and gain a deep understanding of the relevant competencies. You can do it!
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Table of Contents
LESSON 2 ---------------- 5
What is It ---------------- 5
Activity 3 : Tell Me Why?
What’s More ---------------- 8
Activity 4 : Plan Me Right.
What I Have Learned ---------------- 8
What I Can Do ---------------- 9
Assessment ---------------- 9
Activity 6 : Do it Yourself.
Additional Activities ---------------- 10
Answer Key ---------------- 11
References ---------------- 12
What I Need to Know
This module was designed and written with you in mind. It is here to
help you master the nature of Technical and Livelihood Education, in the field
of Automotive. The scope of this module permits it to be used in many
different learning situations. The language used recognizes the diverse
vocabulary level of students. The lessons are arranged to follow the standard
sequence of the course. But the order in which you read them can be
changed to correspond with the textbook you are now using.
1
What I Know
Let us determine how much you already know about planning and
preparing for the task to be undertaken. Take this test .
MULTIPLE CHOICE.
DIRECTIONS: Choose the letter of your best answer. Write your answers on
your TLE – Automotive Servicing Activity Notebook.
1. When using sealant/ adhesive, what are the things you should do first?
A. don’t use PPE’s C. read the warnings & instruction
B. use it right away D. apply the sealant/ adhesive anywhere
2. What will you do if sealant/ adhesive gets into your skin,?
A. use PPE’s C. don’t mind it
B. call a doctor D. wash it with soap and water
3. This step will help you to improve adhesion to any substrate in applying
sealant/ adhesive.
A. painting C. sanding
B. priming D. tooling
4. To obtain full adhesion, the sealant must have _____.
A. wet surface C. rough surface
B. oily surface D. clean-dry and frost-free surface
5. It forces the sealant against the back-up material and the joint surface.
A. cleaning C. shooting
B. priming D. tooling
What’s In
2
Activity 1 : Match Me!
DIRECTIONS: Match column A with column B. Write your answer in your
TLE – Automotive Activity notebook.
COLUMN A COLUMN B
1
COHESION
2
SEALANT
3
ADHESION
4 ADHESIVE
What’s New
3
DIRECTIONS: Describe the pictures below whether it is PRIMING or
CLEANING in at least 1 sentence . Write your answer in your TLE –
Automotive Activity notebook.
Description:
1.
2. Description:
Lesson
Prepare Surface for
2 Sealant/Adhesive Application
4
What is It
SAFETY TIPS
Make sure you read any warnings on the packaging of the glues or
sealants; otherwise you may damage the component you are working on.
SURFACE PREPARATION
5
Prime the mating surface to
ensure and improve adhesion.
Aside from cleaning and priming, there are some factors that can affect
the bond strength application of sealant/ adhesive.
SURFACE TYPE
6
TEMPERATURE
ADHERENCE STRENGTH/TACK
7
What’s More
Procedure:
What I Can Do
8
DIRECTION: Give at least 2 examples of an automotive job where cleaning
and priming is applicable. Copy the table shown below in your TLE –
Automotive Activity Notebook.
Cleaning Priming
Assessment
DIRECTIONS: Write TRUE if the statement is correct and FALSE if the
statement is wrong. Write your answer in your TLE – Automotive Activity
Notebook.
_______4. When preparing surface for sealant/ adhesive PPE’s are not
required.
_______5. You can apply sealant/ adhesive directly without priming the
surface.
Additional Activities
Activity 6 : Do it Yourself.
9
DIRECTIONS: Using the following materials given below, prepare a surface
for sealant/adhesive application. Paste your output in your TLE – Automotive
Activity notebook.
Materials needed:
Answer Key
Answer key
10
What’s more What’s new What’s in What I know
Answer may 1. Cleaning 1. Sealant 1. C
2. priming 2. Adhesive
vary 2. D
3. Adhesion
4. Cohesion 3. B
4. D
5. D
2
Answer may
vary
References
11
Curriculum Guide Automotive Servicing
Automotive Mechanic, 10th edition
Automotive Technology: A System Approach, 5th edition
Automotive Servicing NC I CBLM
https://www.bond-tech-industries.com/adhesive-qa/
https://www.scribd.com/document/349480577/apply-appropriate-
sealant-or-adhesi ve
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