This research aims to investigate and test the feasibility of the production of natural teak sheets and study the appropriate production methods. Study physical properties and mechanical properties to compare with industry standard insulation sheet. The ratio of tattoo and hyacinth. 5% 7% 9% of the material were dried at 400 600 800 kg / m3. The results showed that the modulus rupture. Elastic modulus And thickness swelling. It varies with the amount of glue. The nature of the tattoo causes absorption in the material if the density increases the water absorption will decrease. Compared to standard insulation products. The amount of adhesive is 7% of the weight of the material when dry. The density of 800 kg / m 2 is 25 kg / cm2. 140 degree Celsius ruptured modulus and elastic modulus But the thickness of the swelling has not met the criteria. In the next production should be mixed waterproofing in the work.

Brake pad is a one of products that plays a role in the automotive parts industry and directly affects safety. Therefore there are many designs of brake pads for product development. This research aims to study the thermal conductivity of brake pads and define the thermal conductivity that appropriate to brake pads and also solve the problem of deterioration of braking automotive parts. To achieve this the 3 different ingredient brake pads from Compact International (1994) Co. Ltd. are studied in terms of the heat transfer behavior. The experimental work was set by simulating a brake on the single dynamometer at the braking speed of 50 100 and 130 km/h. As a results the significant parameters are copper and fillers respectively. It affects the heat transfer behavior by means of applying heat from the contact area between the brake pad and the brake disc to the caliper This knowledge will be used in the design of brake pad ingredients to determine the appropriate conductivity of the brake pads.

This research aims to develop the coconut coir and fiber indoor acoustic and thermal insulation boards mixed with natural latex. The 5 ratios of coconut coir: coconut fiber: natural rubber were equal to 0.1: 0.9: 0.1 0.1: 0.9: 0.15 0.1: 0.9: 0.2 0.1: 0.9: 0.25 and 0.1: 0.9: 0.3 by weight. The indoor acoustic and thermal insulation boards were produced by knitting the coconut coir and fiber spraying the natural latex and heat compressing. The properties testing of indoor acoustic and thermal insulation boards included the density test water absorption test tensile strength test thermal conductivity test sound protection efficiency test and real usage test. From the results 0.1: 0.9: 0.15 ratio is the most suitable ratio of coconut coir and fiber indoor acoustic and thermal insulation board mixed with natural latex. The natural latex which putted in these indoor acoustic and thermal insulation boards can reduce the water absorption and increase tensile strength and sound protection efficiency.

This research aims to develop the coconut coir ceiling board mixed with natural latex. The 6 ratios of gypsum plaster: coconut coir: sodium silicate: natural rubber: tap water are equal to 1: 0.15: 0.03: 0.00: 1 1: 0.15: 0.03: 0.01: 1 1: 0.15: 0.03: 0.02: 1 1: 0.15: 0.03: 0.03: 1 1: 0.15: 0.03: 0.04: 1 and 1: 0.15: 0.03: 0.05: 1 by weight. The ceiling boards were produced by casting in normal temperature (30 – 35 degree of Celsius). The properties testing of coconut coir ceiling board mixed with natural latex followed the TIS 219-2009 standard (gypsum plasterboard) including: breaking load nail pull resistance deflection water absorption density thermal conductivity coefficient and real usage. From the results 1: 0.15: 0.03: 0.03: 1 ratio is the most suitable ratio of coconut coir ceiling board mixed with natural latex. This developed ceiling boards can reduce the quantity of coconut coir waste and get the good thermal insulation ceiling board products.

The results of the study on the optimum temperature for baking soda extinguishers were investigated. B9R-3-EMERALD Using brass material in experiments. It was found that the temperature of 750˚C was good for 48% of the workpiece 52% was found that the workpiece was damaged at the surface of the work very porous at the surface. Caused by the heat of metal water pouring into contact with the moisture of the mold resulting in gas. High temperature of metal water Or eliminate gas in metal water is not exhausted. The workpiece is not suitable at a temperature of 800 ° C with a good workpiece of 76%. The workpiece loses 24%. The workpiece loses less punch at the lower porosity as well at 750˚C in temperature. 850˚C workpiece 96% workpiece 4% workpiece the workpiece is almost out. It is less than 750˚C and 800˚C at porosity. And at 900˚C the workpiece is 100% of the workpiece 0%. The workpiece is the best. Workpiece waste from the minimum. The test results make the temperature at 900 ° C is the cleanest casing temperature