About Us

Bruckman Rubber Co. is committed to maintaining high-quality standards in all we do.

Our Quality Statement

Our goal is to pursue continuous improvement, provide products that meet or exceed the requirements of our customers and to deliver all orders in a timely manner. In order to accomplish this, we focus on the four main quality objectives set forth in our quality statement:

1. Customer Satisfaction

Absolutely everyone who works at Bruckman Rubber Co. is responsible for assuring customer satisfaction. We continually monitor our products and procedures to make sure customer satisfaction maintained at the highest level.

2. Quality Products

Bruckman Rubber Co. believes in providing our customers with high-quality products and service. We achieve this by getting to know you, understanding how the products you need are to be used, and closely monitoring every step of the manufacturing and delivery process.

3. Continuous Improvement

At Bruckman Rubber Co., we never stop looking for new and better ways to achieve success. We continually strive to make our company the best it can be by challenging all of our employees to be innovative thinkers, effective communicators, and efficient workers.

4. Timely Delivery

Our quality products and service will be of little value if your orders aren’t received on time. We understand the full cost late shipments can have on your business, so we treat all jobs with a sense of urgency from beginning to end, and won’t stop until your order arrives on the date you specified.

Extensive Testing Capabilities

Bruckman Rubber Company has a deep knowledge of rubber and its various properties. To make sure the rubber material we use will perform exactly as needed by our customers, we’ve invested in a wide array of testing equipment. The tests outlined below are but a sampling of our extensive testing capabilities.

Densimeter helps to prevent mixing errors in our rubber compounds.

Specific gravity is the ratio between the density or weight of an object, and some reference substance, typically water. Compounds with low specific gravity provide more square inches per pound of material, and high specific gravity compounds have better advantages in molding consistency.

Bruckman Rubber Co. uses a densimeter to make sure the specific gravity is consistent in every batch of material we produce, thus assuring no mixing errors have occurred. This is done by measuring the weight of a test slug of material and comparing it to the weight of the same slug submerged in water,

Rheometer measures the stiffness of rubber over time as heat and pressure are applied.

Bruckman Rubber Co. uses an oscillating disc rheometer to measure the stiffness of a sample of rubber material over time as heat and pressure are applied to it.

Testing a compound with a rheometer enables us to monitor the consistency of multiple batches mixed for a particular job, identify potential problems with any batch of material, as well as modify formulas to achieve the best quality. We’re also able to utilize new and better ingredients and verify their usefulness in new and current formulas.

Tensile testing determines the materials maximum stress threshold.

Bruckman Rubber Co. uses a tensile tester to determine the maximum amount of tensile stress the rubber material can take before breaking. Doing so allows us to know exactly how much force can be applied to parts before failure may occur.
This especially important when the parts are to be used for specific applications such as bungee cords, rubber tie downs, and drive belts.

Elongation determines how much bending and shaping a material can withstand.

Elongation is the percentage increase in the original length of a rubber sample at the breaking point during tensile testing. Bruckman Rubber Co. conducts elongation testing in conjunction with tensile testing on the tensile tester.

Elongation can tell us how much bending and shaping a material can withstand without breaking. It’s also an important metric for applications that absorb energy, such as crash barriers and car bumpers.

Shore A Durometer measures material hardness.

Bruckman Rubber Co. uses a Shore A durometer scale exclusively to measure material hardness. This is an important measurement to consider depending on mold design and final part application. Material that is too hard or too flexible may be impossible to retrieve from particular molds once cured without breaking or becoming deformed.

ASTM D2240 calls out 12 different scales that use different combinations of spring forces and indentor configurations. Most rubber samples across the industry are measured to Shore A durometer, as this scale is capable of measuring very soft and flexible materials to materials that have almost no flexibility at all.

Compression Set Testing determines the material’s resilience.

When rubber material is compressed over time, as is the case with many seals and gaskets, the part is likely to lose the ability to return to its original shape. This could cause unexpected part failure.

Bruckman Rubber Co. compression set testing follows ASTM D395, Test Method B. Samples of a specific thickness are compressed for 22 – 70 hours at an elevated temperature. The sample is then allowed to cool, dimensions are measured, and the before and after readings are compared to calculate the compression set percentage.

After Heat Aging determines the time frame of material degradation

Putting samples under an accelerated heat-aging process allows for the estimation of part degradation over a much longer timeframe. This allows us to predict if the sample is able to withstand its proposed application before an actual in-the-field failure ever occurs.

Bruckman Rubber Co. follows the standard test method for rubber deterioration in an oven per ASTM D573, ASTM D412, and ASTM D1349. After a sample has undergone such initial tests as tensile, elongation, durometer, and specific gravity, it is then placed in a designated oven for 22 – 70 hours at a predetermined temperature. After this, the sample goes the same initial tests. The before and after results of each test help to predict the life expectancy of the part and how well it should perform over a much longer time frame.


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